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    <link:label xlink:type="resource" xlink:label="label_CapitalStockAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalStockAbstract" xml:lang="en-US" id="label_CapitalStockAbstract">Capital Stock [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalStockAbstract" xlink:to="label_CapitalStockAbstract" xlink:title="label: CapitalStockAbstract to label_CapitalStockAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CapitalStockAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CapitalStockAbstract" xml:lang="en-US" id="label_CapitalStockAbstract_2">Capital stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalStockAbstract" xlink:to="label_CapitalStockAbstract_2" xlink:title="label: CapitalStockAbstract to label_CapitalStockAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_DescriptionOfBusinessDisclosureAbstract" xlink:label="DescriptionOfBusinessDisclosureAbstract" xlink:title="DescriptionOfBusinessDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_DescriptionOfBusinessDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DescriptionOfBusinessDisclosureAbstract" xml:lang="en-US" id="label_DescriptionOfBusinessDisclosureAbstract">DESCRIPTION OF BUSINESS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DescriptionOfBusinessDisclosureAbstract" xlink:to="label_DescriptionOfBusinessDisclosureAbstract" xlink:title="label: DescriptionOfBusinessDisclosureAbstract to label_DescriptionOfBusinessDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LiquidityAndCapitalResourcesDisclosureAbstract" xlink:label="LiquidityAndCapitalResourcesDisclosureAbstract" xlink:title="LiquidityAndCapitalResourcesDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiquidityAndCapitalResourcesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiquidityAndCapitalResourcesDisclosureAbstract" xml:lang="en-US" id="label_LiquidityAndCapitalResourcesDisclosureAbstract">LIQUIDITY AND CAPITAL RESOURCES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiquidityAndCapitalResourcesDisclosureAbstract" xlink:to="label_LiquidityAndCapitalResourcesDisclosureAbstract" xlink:title="label: LiquidityAndCapitalResourcesDisclosureAbstract to label_LiquidityAndCapitalResourcesDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LiquidityAndCapitalResourcesTextBlock" xlink:label="LiquidityAndCapitalResourcesTextBlock" xlink:title="LiquidityAndCapitalResourcesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LiquidityAndCapitalResourcesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiquidityAndCapitalResourcesTextBlock" xml:lang="en-US" id="label_LiquidityAndCapitalResourcesTextBlock">Liquidity and Capital Resources [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiquidityAndCapitalResourcesTextBlock" xlink:to="label_LiquidityAndCapitalResourcesTextBlock" xlink:title="label: LiquidityAndCapitalResourcesTextBlock to label_LiquidityAndCapitalResourcesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LiquidityAndCapitalResourcesTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiquidityAndCapitalResourcesTextBlock" xml:lang="en-US" id="label_LiquidityAndCapitalResourcesTextBlock_3">LIQUIDITY AND CAPITAL RESOURCES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiquidityAndCapitalResourcesTextBlock" xlink:to="label_LiquidityAndCapitalResourcesTextBlock_3" xlink:title="label: LiquidityAndCapitalResourcesTextBlock to label_LiquidityAndCapitalResourcesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LiquidityAndCapitalResourcesTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LiquidityAndCapitalResourcesTextBlock" xml:lang="en-US" id="label_LiquidityAndCapitalResourcesTextBlock_2">This element may be used for the entire disclosure related to entity's liquidity and capital resources, which includes description of entity's revenue, stockholders' equity, including other comprehensive income, and cash and cash equivalents disclosure.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiquidityAndCapitalResourcesTextBlock" xlink:to="label_LiquidityAndCapitalResourcesTextBlock_2" xlink:title="label: LiquidityAndCapitalResourcesTextBlock to label_LiquidityAndCapitalResourcesTextBlock" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LicenseAgreementsDisclosureAbstract" xlink:label="LicenseAgreementsDisclosureAbstract" xlink:title="LicenseAgreementsDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LicenseAgreementsDisclosureAbstract" xml:lang="en-US" id="label_LicenseAgreementsDisclosureAbstract">LICENSE AGREEMENTS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsDisclosureAbstract" xlink:to="label_LicenseAgreementsDisclosureAbstract" xlink:title="label: LicenseAgreementsDisclosureAbstract to label_LicenseAgreementsDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LicenseAgreementsDisclosureTextBlock" xlink:label="LicenseAgreementsDisclosureTextBlock" xlink:title="LicenseAgreementsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LicenseAgreementsDisclosureTextBlock" xml:lang="en-US" id="label_LicenseAgreementsDisclosureTextBlock">LICENSE AGREEMENTS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsDisclosureTextBlock" xlink:to="label_LicenseAgreementsDisclosureTextBlock" xlink:title="label: LicenseAgreementsDisclosureTextBlock to label_LicenseAgreementsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsDisclosureTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LicenseAgreementsDisclosureTextBlock" xml:lang="en-US" id="label_LicenseAgreementsDisclosureTextBlock_3">License Agreements Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsDisclosureTextBlock" xlink:to="label_LicenseAgreementsDisclosureTextBlock_3" xlink:title="label: LicenseAgreementsDisclosureTextBlock to label_LicenseAgreementsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_LicenseAgreementsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LicenseAgreementsDisclosureTextBlock" xml:lang="en-US" id="label_LicenseAgreementsDisclosureTextBlock_2">The entire disclosure for all or part of the information related to license agreements.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LicenseAgreementsDisclosureTextBlock" xlink:to="label_LicenseAgreementsDisclosureTextBlock_2" xlink:title="label: LicenseAgreementsDisclosureTextBlock to label_LicenseAgreementsDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_DocumentAndEntityInformationAbstract" xlink:label="DocumentAndEntityInformationAbstract" xlink:title="DocumentAndEntityInformationAbstract" />
    <link:label xlink:type="resource" xlink:label="label_DocumentAndEntityInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentAndEntityInformationAbstract" xml:lang="en-US" id="label_DocumentAndEntityInformationAbstract">Document and Entity Information</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentAndEntityInformationAbstract" xlink:to="label_DocumentAndEntityInformationAbstract" xlink:title="label: DocumentAndEntityInformationAbstract to label_DocumentAndEntityInformationAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:label="UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:title="UnpaidCostsAssociatedWithUnderWrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xml:lang="en-US" id="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering">Unpaid Costs Associated with Under Written Public Offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:to="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:title="label: UnpaidCostsAssociatedWithUnderWrittenPublicOffering to label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xml:lang="en-US" id="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_3">Unpaid costs associated with underwritten public offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:to="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_3" xlink:title="label: UnpaidCostsAssociatedWithUnderWrittenPublicOffering to label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xml:lang="en-US" id="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_2">Represents the amount of unpaid costs associated with underwritten public offering in a noncash or partial noncash transaction.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="UnpaidCostsAssociatedWithUnderWrittenPublicOffering" xlink:to="label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering_2" xlink:title="label: UnpaidCostsAssociatedWithUnderWrittenPublicOffering to label_UnpaidCostsAssociatedWithUnderWrittenPublicOffering" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:label="ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:title="ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering">Proceeds from Issuance of Common Stock by Underwritten Public Offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:to="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:title="label: ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering to label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_2">Represents the proceeds, net of underwriters' discounts, commissions and offering expenses, from the issuance of stock through an underwritten public offering.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:to="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_2" xlink:title="label: ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering to label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_3">Net proceeds from issuance of shares through an underwritten public offering</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" xlink:to="label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering_3" xlink:title="label: ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering to label_ProceedsFromIssuanceOfCommonStockByUnderwrittenPublicOffering" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_AmendmentDescription" xlink:label="AmendmentDescription" xlink:title="AmendmentDescription" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentDescription" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentDescription" xml:lang="en-US" id="label_AmendmentDescription">Amendment Description</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentDescription" xlink:to="label_AmendmentDescription" xlink:title="label: AmendmentDescription to label_AmendmentDescription" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ExcessConsiderationPaidOverFairValue" xlink:label="ExcessConsiderationPaidOverFairValue" xlink:title="ExcessConsiderationPaidOverFairValue" />
    <link:label xlink:type="resource" xlink:label="label_ExcessConsiderationPaidOverFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ExcessConsiderationPaidOverFairValue" xml:lang="en-US" id="label_ExcessConsiderationPaidOverFairValue">Excess Consideration Paid Over Fair Value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessConsiderationPaidOverFairValue" xlink:to="label_ExcessConsiderationPaidOverFairValue" xlink:title="label: ExcessConsiderationPaidOverFairValue to label_ExcessConsiderationPaidOverFairValue" />
    <link:label xlink:type="resource" xlink:label="label_ExcessConsiderationPaidOverFairValue_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ExcessConsiderationPaidOverFairValue" xml:lang="en-US" id="label_ExcessConsiderationPaidOverFairValue_3">Excess consideration paid over fair value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessConsiderationPaidOverFairValue" xlink:to="label_ExcessConsiderationPaidOverFairValue_3" xlink:title="label: ExcessConsiderationPaidOverFairValue to label_ExcessConsiderationPaidOverFairValue" />
    <link:label xlink:type="resource" xlink:label="label_ExcessConsiderationPaidOverFairValue_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ExcessConsiderationPaidOverFairValue" xml:lang="en-US" id="label_ExcessConsiderationPaidOverFairValue_2">Amount of expenses charged against earnings during the period related to business combination, which is the excess of the cost of the acquired entity over the fair value assigned to assets acquired and liabilities assumed.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ExcessConsiderationPaidOverFairValue" xlink:to="label_ExcessConsiderationPaidOverFairValue_2" xlink:title="label: ExcessConsiderationPaidOverFairValue to label_ExcessConsiderationPaidOverFairValue" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_AmendmentFlag" xlink:label="AmendmentFlag" xlink:title="AmendmentFlag" />
    <link:label xlink:type="resource" xlink:label="label_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AmendmentFlag" xml:lang="en-US" id="label_AmendmentFlag">Amendment Flag</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmendmentFlag" xlink:to="label_AmendmentFlag" xlink:title="label: AmendmentFlag to label_AmendmentFlag" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_IssuanceOfCommonSharesAbstract" xlink:label="IssuanceOfCommonSharesAbstract" xlink:title="IssuanceOfCommonSharesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfCommonSharesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IssuanceOfCommonSharesAbstract" xml:lang="en-US" id="label_IssuanceOfCommonSharesAbstract">Issuance of Common Shares [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfCommonSharesAbstract" xlink:to="label_IssuanceOfCommonSharesAbstract" xlink:title="label: IssuanceOfCommonSharesAbstract to label_IssuanceOfCommonSharesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_IssuanceOfCommonSharesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IssuanceOfCommonSharesAbstract" xml:lang="en-US" id="label_IssuanceOfCommonSharesAbstract_2">Issuance of common shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IssuanceOfCommonSharesAbstract" xlink:to="label_IssuanceOfCommonSharesAbstract_2" xlink:title="label: IssuanceOfCommonSharesAbstract to label_IssuanceOfCommonSharesAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:label="StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:title="StockIssuedDuringPeriodValueCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants">Stock Issued During Period Value, Common Shares and Warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:title="label: StockIssuedDuringPeriodValueCommonSharesAndWarrants to label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_3">Registered direct offerings of common shares and warrants, net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_3" xlink:title="label: StockIssuedDuringPeriodValueCommonSharesAndWarrants to label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_2">Value of common stock and warrants issued during the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodValueCommonSharesAndWarrants_2" xlink:title="label: StockIssuedDuringPeriodValueCommonSharesAndWarrants to label_StockIssuedDuringPeriodValueCommonSharesAndWarrants" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:label="AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:title="AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" />
    <link:label xlink:type="resource" xlink:label="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xml:lang="en-US" id="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility">Adjustments to Additional Paid in Capital Credit Equity Financing Facility</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:to="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:title="label: AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility to label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" />
    <link:label xlink:type="resource" xlink:label="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xml:lang="en-US" id="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_3">Credit equity financing facility</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:to="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_3" xlink:title="label: AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility to label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" />
    <link:label xlink:type="resource" xlink:label="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xml:lang="en-US" id="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_2">Increase in Additional Paid-in-Capital pursuant to credit equity financing facility under which entity could borrow funds. Further, convertible notes are subject to repurchase by entity at each holder's option.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" xlink:to="label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility_2" xlink:title="label: AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility to label_AdjustmentsToAdditionalPaidInCapitalCreditEquityFinancingFacility" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:label="StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:title="StockIssuedDuringPeriodCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodCommonSharesAndWarrants">Stock Issued During Period, Common Shares and Warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:title="label: StockIssuedDuringPeriodCommonSharesAndWarrants to label_StockIssuedDuringPeriodCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodCommonSharesAndWarrants_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodCommonSharesAndWarrants_3">Registered direct offerings of common shares and warrants, net (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodCommonSharesAndWarrants_3" xlink:title="label: StockIssuedDuringPeriodCommonSharesAndWarrants to label_StockIssuedDuringPeriodCommonSharesAndWarrants" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodCommonSharesAndWarrants_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodCommonSharesAndWarrants" xml:lang="en-US" id="label_StockIssuedDuringPeriodCommonSharesAndWarrants_2">Number of common shares and warrants issued during the reporting period.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodCommonSharesAndWarrants" xlink:to="label_StockIssuedDuringPeriodCommonSharesAndWarrants_2" xlink:title="label: StockIssuedDuringPeriodCommonSharesAndWarrants to label_StockIssuedDuringPeriodCommonSharesAndWarrants" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockIssuedDuringPeriodValueWarrantsExercised" xlink:label="StockIssuedDuringPeriodValueWarrantsExercised" xlink:title="StockIssuedDuringPeriodValueWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueWarrantsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodValueWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueWarrantsExercised">Stock Issued During Period Value, Warrants Exercised</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodValueWarrantsExercised" xlink:title="label: StockIssuedDuringPeriodValueWarrantsExercised to label_StockIssuedDuringPeriodValueWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueWarrantsExercised_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodValueWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueWarrantsExercised_3">Warrant exercises - various</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodValueWarrantsExercised_3" xlink:title="label: StockIssuedDuringPeriodValueWarrantsExercised to label_StockIssuedDuringPeriodValueWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodValueWarrantsExercised_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodValueWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodValueWarrantsExercised_2">Value stock issued during the period as a result of the exercise of warrants.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodValueWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodValueWarrantsExercised_2" xlink:title="label: StockIssuedDuringPeriodValueWarrantsExercised to label_StockIssuedDuringPeriodValueWarrantsExercised" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:label="StockIssuedDuringPeriodSharesWarrantsExercised" xlink:title="StockIssuedDuringPeriodSharesWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesWarrantsExercised">Stock Issued During Period Shares, Warrants Exercised</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodSharesWarrantsExercised" xlink:title="label: StockIssuedDuringPeriodSharesWarrantsExercised to label_StockIssuedDuringPeriodSharesWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesWarrantsExercised_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesWarrantsExercised_3">Warrant exercises - various (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodSharesWarrantsExercised_3" xlink:title="label: StockIssuedDuringPeriodSharesWarrantsExercised to label_StockIssuedDuringPeriodSharesWarrantsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesWarrantsExercised_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockIssuedDuringPeriodSharesWarrantsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesWarrantsExercised_2">Number of shares of stock issued during the period as a result of the exercise of warrants.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesWarrantsExercised" xlink:to="label_StockIssuedDuringPeriodSharesWarrantsExercised_2" xlink:title="label: StockIssuedDuringPeriodSharesWarrantsExercised to label_StockIssuedDuringPeriodSharesWarrantsExercised" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NoncashInvestment" xlink:label="NoncashInvestment" xlink:title="NoncashInvestment" />
    <link:label xlink:type="resource" xlink:label="label_NoncashInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NoncashInvestment" xml:lang="en-US" id="label_NoncashInvestment">Noncash Investment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncashInvestment" xlink:to="label_NoncashInvestment" xlink:title="label: NoncashInvestment to label_NoncashInvestment" />
    <link:label xlink:type="resource" xlink:label="label_NoncashInvestment_3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NoncashInvestment" xml:lang="en-US" id="label_NoncashInvestment_3">Investment - non-cash</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncashInvestment" xlink:to="label_NoncashInvestment_3" xlink:title="label: NoncashInvestment to label_NoncashInvestment" />
    <link:label xlink:type="resource" xlink:label="label_NoncashInvestment_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NoncashInvestment" xml:lang="en-US" id="label_NoncashInvestment_2">The value of investments in noncash investing or financing activities.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NoncashInvestment" xlink:to="label_NoncashInvestment_2" xlink:title="label: NoncashInvestment to label_NoncashInvestment" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xlink:label="ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xlink:title="ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xml:lang="en-US" id="label_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xlink:to="label_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" xlink:title="label: ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract to label_ConsolidationBasisOfPresentationAndAccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:label="ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:title="ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xml:lang="en-US" id="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:to="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:title="label: ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock to label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xml:lang="en-US" id="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock_2">Consolidation Basis of Presentation and Accounting Policies [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" xlink:to="label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock_2" xlink:title="label: ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock to label_ConsolidationBasisOfPresentationAndAccountingPoliciesTextBlock" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_RepaymentsOfShortTermConvertibleDebt" xlink:label="RepaymentsOfShortTermConvertibleDebt" xlink:title="RepaymentsOfShortTermConvertibleDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfShortTermConvertibleDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RepaymentsOfShortTermConvertibleDebt" xml:lang="en-US" id="label_RepaymentsOfShortTermConvertibleDebt">Repayments of Short Term Convertible Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfShortTermConvertibleDebt" xlink:to="label_RepaymentsOfShortTermConvertibleDebt" xlink:title="label: RepaymentsOfShortTermConvertibleDebt to label_RepaymentsOfShortTermConvertibleDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfShortTermConvertibleDebt_3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_RepaymentsOfShortTermConvertibleDebt" xml:lang="en-US" id="label_RepaymentsOfShortTermConvertibleDebt_3">Cash paid for convertible note repayment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfShortTermConvertibleDebt" xlink:to="label_RepaymentsOfShortTermConvertibleDebt_3" xlink:title="label: RepaymentsOfShortTermConvertibleDebt to label_RepaymentsOfShortTermConvertibleDebt" />
    <link:label xlink:type="resource" xlink:label="label_RepaymentsOfShortTermConvertibleDebt_2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RepaymentsOfShortTermConvertibleDebt" xml:lang="en-US" id="label_RepaymentsOfShortTermConvertibleDebt_2">The cash outflow from the conversion at maturity of a short-term debt instrument which was exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RepaymentsOfShortTermConvertibleDebt" xlink:to="label_RepaymentsOfShortTermConvertibleDebt_2" xlink:title="label: RepaymentsOfShortTermConvertibleDebt to label_RepaymentsOfShortTermConvertibleDebt" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="CurrentFiscalYearEndDate" xlink:title="CurrentFiscalYearEndDate" />
    <link:label xlink:type="resource" xlink:label="label_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CurrentFiscalYearEndDate" xml:lang="en-US" id="label_CurrentFiscalYearEndDate">Current Fiscal Year End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CurrentFiscalYearEndDate" xlink:to="label_CurrentFiscalYearEndDate" xlink:title="label: CurrentFiscalYearEndDate to label_CurrentFiscalYearEndDate" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="DocumentPeriodEndDate" xlink:title="DocumentPeriodEndDate" />
    <link:label xlink:type="resource" xlink:label="label_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentPeriodEndDate" xml:lang="en-US" id="label_DocumentPeriodEndDate">Document Period End Date</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DocumentPeriodEndDate" xlink:to="label_DocumentPeriodEndDate" xlink:title="label: DocumentPeriodEndDate to label_DocumentPeriodEndDate" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="AccountingPoliciesAbstract" xlink:title="AccountingPoliciesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AccountingPoliciesAbstract" xml:lang="en-US" id="label_AccountingPoliciesAbstract">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AccountingPoliciesAbstract" xlink:to="label_AccountingPoliciesAbstract" xlink:title="label: AccountingPoliciesAbstract to label_AccountingPoliciesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="EntityWellKnownSeasonedIssuer" xlink:title="EntityWellKnownSeasonedIssuer" />
    <link:label xlink:type="resource" xlink:label="label_EntityWellKnownSeasonedIssuer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityWellKnownSeasonedIssuer" xml:lang="en-US" id="label_EntityWellKnownSeasonedIssuer">Entity Well-known Seasoned Issuer</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityWellKnownSeasonedIssuer" xlink:to="label_EntityWellKnownSeasonedIssuer" xlink:title="label: EntityWellKnownSeasonedIssuer to label_EntityWellKnownSeasonedIssuer" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="EntityVoluntaryFilers" xlink:title="EntityVoluntaryFilers" />
    <link:label xlink:type="resource" xlink:label="label_EntityVoluntaryFilers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityVoluntaryFilers" xml:lang="en-US" id="label_EntityVoluntaryFilers">Entity Voluntary Filers</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityVoluntaryFilers" xlink:to="label_EntityVoluntaryFilers" xlink:title="label: EntityVoluntaryFilers to label_EntityVoluntaryFilers" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="EntityCurrentReportingStatus" xlink:title="EntityCurrentReportingStatus" />
    <link:label xlink:type="resource" xlink:label="label_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityCurrentReportingStatus" xml:lang="en-US" id="label_EntityCurrentReportingStatus">Entity Current Reporting Status</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCurrentReportingStatus" xlink:to="label_EntityCurrentReportingStatus" xlink:title="label: EntityCurrentReportingStatus to label_EntityCurrentReportingStatus" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityFilerCategory" xlink:label="EntityFilerCategory" xlink:title="EntityFilerCategory" />
    <link:label xlink:type="resource" xlink:label="label_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityFilerCategory" xml:lang="en-US" id="label_EntityFilerCategory">Entity Filer Category</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityFilerCategory" xlink:to="label_EntityFilerCategory" xlink:title="label: EntityFilerCategory to label_EntityFilerCategory" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityPublicFloat" xlink:label="EntityPublicFloat" xlink:title="EntityPublicFloat" />
    <link:label xlink:type="resource" xlink:label="label_EntityPublicFloat" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityPublicFloat" xml:lang="en-US" id="label_EntityPublicFloat">Entity Public Float</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityPublicFloat" xlink:to="label_EntityPublicFloat" xlink:title="label: EntityPublicFloat to label_EntityPublicFloat" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityRegistrantName" xlink:label="EntityRegistrantName" xlink:title="EntityRegistrantName" />
    <link:label xlink:type="resource" xlink:label="label_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityRegistrantName" xml:lang="en-US" id="label_EntityRegistrantName">Entity Registrant Name</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityRegistrantName" xlink:to="label_EntityRegistrantName" xlink:title="label: EntityRegistrantName to label_EntityRegistrantName" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="EntityCentralIndexKey" xlink:title="EntityCentralIndexKey" />
    <link:label xlink:type="resource" xlink:label="label_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityCentralIndexKey" xml:lang="en-US" id="label_EntityCentralIndexKey">Entity Central Index Key</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCentralIndexKey" xlink:to="label_EntityCentralIndexKey" xlink:title="label: EntityCentralIndexKey to label_EntityCentralIndexKey" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="EntityCommonStockSharesOutstanding" xlink:title="EntityCommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityCommonStockSharesOutstanding" xml:lang="en-US" id="label_EntityCommonStockSharesOutstanding">Entity Common Stock, Shares Outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityCommonStockSharesOutstanding" xlink:to="label_EntityCommonStockSharesOutstanding" xlink:title="label: EntityCommonStockSharesOutstanding to label_EntityCommonStockSharesOutstanding" />
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    <link:label xlink:type="resource" xlink:label="label_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DocumentFiscalYearFocus" xml:lang="en-US" id="label_DocumentFiscalYearFocus">Document Fiscal Year Focus</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsAbstract" xml:lang="en-US" id="label_AssetsAbstract">Assets [Abstract]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsCurrent" xml:lang="en-US" id="label_AssetsCurrent">Assets, Current</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsDisclosureTextBlock" xlink:to="label_CommitmentsDisclosureTextBlock" xlink:title="label: CommitmentsDisclosureTextBlock to label_CommitmentsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_CommitmentsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsDisclosureTextBlock" xml:lang="en-US" id="label_CommitmentsDisclosureTextBlock_2">Commitments Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsDisclosureTextBlock" xlink:to="label_CommitmentsDisclosureTextBlock_2" xlink:title="label: CommitmentsDisclosureTextBlock to label_CommitmentsDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="CommitmentsAndContingenciesDisclosureAbstract" xlink:title="CommitmentsAndContingenciesDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CommitmentsAndContingenciesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommitmentsAndContingenciesDisclosureAbstract" xml:lang="en-US" id="label_CommitmentsAndContingenciesDisclosureAbstract">COMMITMENTS AND CONTINGENCIES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommitmentsAndContingenciesDisclosureAbstract" xlink:to="label_CommitmentsAndContingenciesDisclosureAbstract" xlink:title="label: CommitmentsAndContingenciesDisclosureAbstract to label_CommitmentsAndContingenciesDisclosureAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember">Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember" xlink:title="label: CommonStockMember to label_CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember_2">Common Stock [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember_2" xlink:title="label: CommonStockMember to label_CommonStockMember" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockMember_3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_CommonStockMember" xml:lang="en-US" id="label_CommonStockMember_3">Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockMember" xlink:to="label_CommonStockMember_3" xlink:title="label: CommonStockMember to label_CommonStockMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="CommonStockSharesOutstanding" xlink:title="CommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesOutstanding" xml:lang="en-US" id="label_CommonStockSharesOutstanding">Common Stock, Shares, Outstanding</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesOutstanding" xlink:to="label_CommonStockSharesOutstanding" xlink:title="label: CommonStockSharesOutstanding to label_CommonStockSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesOutstanding_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesOutstanding" xml:lang="en-US" id="label_CommonStockSharesOutstanding_2">Capital stock, outstanding shares</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="CommonStockSharesIssued" xlink:title="CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued">Common Stock, Shares, Issued</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CommonStockSharesIssued" xlink:to="label_CommonStockSharesIssued" xlink:title="label: CommonStockSharesIssued to label_CommonStockSharesIssued" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockSharesIssued_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockSharesIssued" xml:lang="en-US" id="label_CommonStockSharesIssued_2">Capital stock, issued shares</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="CommonStockValueOutstanding" xlink:title="CommonStockValueOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_CommonStockValueOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonStockValueOutstanding" xml:lang="en-US" id="label_CommonStockValueOutstanding">Common Stock, Value, Outstanding</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonStockValueOutstanding_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonStockValueOutstanding" xml:lang="en-US" id="label_CommonStockValueOutstanding_2">Capital stock</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonClassCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CommonClassCMember" xml:lang="en-US" id="label_CommonClassCMember">Class C Special Shares</link:label>
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    <link:label xlink:type="resource" xlink:label="label_CommonClassCMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CommonClassCMember" xml:lang="en-US" id="label_CommonClassCMember_2">Common Class C [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="CompensationAndRetirementDisclosureAbstract" xlink:title="CompensationAndRetirementDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_CompensationAndRetirementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CompensationAndRetirementDisclosureAbstract" xml:lang="en-US" id="label_CompensationAndRetirementDisclosureAbstract">RETIREMENT PLAN</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ConvertibleNotesPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleNotesPayableCurrent" xml:lang="en-US" id="label_ConvertibleNotesPayableCurrent">Convertible Notes Payable, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesPayableCurrent" xlink:to="label_ConvertibleNotesPayableCurrent" xlink:title="label: ConvertibleNotesPayableCurrent to label_ConvertibleNotesPayableCurrent" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleNotesPayableCurrent_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleNotesPayableCurrent" xml:lang="en-US" id="label_ConvertibleNotesPayableCurrent_2">Current portion of Convertible Senior Notes</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ConvertibleLongTermNotesPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleLongTermNotesPayable" xml:lang="en-US" id="label_ConvertibleLongTermNotesPayable">Convertible Notes Payable, Noncurrent</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ConvertibleLongTermNotesPayable_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleLongTermNotesPayable" xml:lang="en-US" id="label_ConvertibleLongTermNotesPayable_2">Long-term convertible senior notes</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="CostsAndExpenses" xlink:title="CostsAndExpenses" />
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    <link:label xlink:type="resource" xlink:label="label_CostsAndExpenses_2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_CostsAndExpenses" xml:lang="en-US" id="label_CostsAndExpenses_2">Total expenses</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DebtDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtDisclosureTextBlock" xml:lang="en-US" id="label_DebtDisclosureTextBlock_2">CONVERTIBLE SENIOR NOTES</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="IncreaseDecreaseInOperatingCapitalAbstract" xlink:title="IncreaseDecreaseInOperatingCapitalAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInOtherReceivables" xlink:label="IncreaseDecreaseInOtherReceivables" xlink:title="IncreaseDecreaseInOtherReceivables" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:title="label: IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets to label_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInRoyaltiesPayable" xlink:label="IncreaseDecreaseInRoyaltiesPayable" xlink:title="IncreaseDecreaseInRoyaltiesPayable" />
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInRoyaltiesPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInRoyaltiesPayable" xml:lang="en-US" id="label_IncreaseDecreaseInRoyaltiesPayable">Increase (Decrease) in Royalties Payable</link:label>
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    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInRoyaltiesPayable_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_IncreaseDecreaseInRoyaltiesPayable" xml:lang="en-US" id="label_IncreaseDecreaseInRoyaltiesPayable_2">Due to licensor - Antares</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="IncreaseDecreaseInStockholdersEquityRollForward" xlink:title="IncreaseDecreaseInStockholdersEquityRollForward" />
    <link:label xlink:type="resource" xlink:label="label_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_IncreaseDecreaseInStockholdersEquityRollForward" xml:lang="en-US" id="label_IncreaseDecreaseInStockholdersEquityRollForward">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_InterestExpense_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_InterestExpense" xml:lang="en-US" id="label_InterestExpense_2">Interest expense</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestPaid" xlink:label="InterestPaid" xlink:title="InterestPaid" />
    <link:label xlink:type="resource" xlink:label="label_InterestPaid" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InterestPaid" xml:lang="en-US" id="label_InterestPaid">Interest Paid</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPaid" xlink:to="label_InterestPaid" xlink:title="label: InterestPaid to label_InterestPaid" />
    <link:label xlink:type="resource" xlink:label="label_InterestPaid_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InterestPaid" xml:lang="en-US" id="label_InterestPaid_2">Interest paid</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InvestmentIncomeNet" xlink:label="InvestmentIncomeNet" xlink:title="InvestmentIncomeNet" />
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    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeNet_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InvestmentIncomeNet" xml:lang="en-US" id="label_InvestmentIncomeNet_2">Interest income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeNet" xlink:to="label_InvestmentIncomeNet_2" xlink:title="label: InvestmentIncomeNet to label_InvestmentIncomeNet" />
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    <link:label xlink:type="resource" xlink:label="label_LeasesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LeasesAbstract" xml:lang="en-US" id="label_LeasesAbstract">LEASE ARRANGEMENTS</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LeasesAbstract" xlink:to="label_LeasesAbstract" xlink:title="label: LeasesAbstract to label_LeasesAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="label_LiabilitiesCurrent" xlink:title="label: LiabilitiesCurrent to label_LiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_LiabilitiesCurrent" xml:lang="en-US" id="label_LiabilitiesCurrent_2">TOTAL CURRENT LIABILITIES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrent" xlink:to="label_LiabilitiesCurrent_2" xlink:title="label: LiabilitiesCurrent to label_LiabilitiesCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="LiabilitiesCurrentAbstract" xlink:title="LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesCurrentAbstract" xml:lang="en-US" id="label_LiabilitiesCurrentAbstract">Liabilities, Current [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="label_LiabilitiesCurrentAbstract" xlink:title="label: LiabilitiesCurrentAbstract to label_LiabilitiesCurrentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesCurrentAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiabilitiesCurrentAbstract" xml:lang="en-US" id="label_LiabilitiesCurrentAbstract_2">CURRENT LIABILITIES</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesCurrentAbstract" xlink:to="label_LiabilitiesCurrentAbstract_2" xlink:title="label: LiabilitiesCurrentAbstract to label_LiabilitiesCurrentAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:label xlink:type="resource" xlink:label="label_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Liabilities" xml:lang="en-US" id="label_Liabilities">Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Liabilities" xlink:to="label_Liabilities" xlink:title="label: Liabilities to label_Liabilities" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1" xlink:label="NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1" xlink:title="NoncashOrPartNoncashAcquisitionOtherLiabilitiesAssumed1" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1" xlink:label="NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1" xlink:title="NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1" />
    <link:label xlink:type="resource" xlink:label="label_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1" xml:lang="en-US" id="label_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1">Liabilities acquired through Cell Genesys transaction</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="NonoperatingIncomeExpenseAbstract" xlink:title="NonoperatingIncomeExpenseAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="OtherNoncashIncomeExpense" xlink:title="OtherNoncashIncomeExpense" />
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    <link:label xlink:type="resource" xlink:label="label_OtherSalesRevenueNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherSalesRevenueNet" xml:lang="en-US" id="label_OtherSalesRevenueNet">Other Revenue, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherSalesRevenueNet" xlink:to="label_OtherSalesRevenueNet" xlink:title="label: OtherSalesRevenueNet to label_OtherSalesRevenueNet" />
    <link:label xlink:type="resource" xlink:label="label_OtherSalesRevenueNet_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherSalesRevenueNet" xml:lang="en-US" id="label_OtherSalesRevenueNet_2">Other revenue</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="OtherAccruedLiabilitiesCurrent" xlink:title="OtherAccruedLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherAccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_OtherAccruedLiabilitiesCurrent" xml:lang="en-US" id="label_OtherAccruedLiabilitiesCurrent">Other Accrued Liabilities, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAccruedLiabilitiesCurrent" xlink:to="label_OtherAccruedLiabilitiesCurrent" xlink:title="label: OtherAccruedLiabilitiesCurrent to label_OtherAccruedLiabilitiesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_OtherAccruedLiabilitiesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_OtherAccruedLiabilitiesCurrent" xml:lang="en-US" id="label_OtherAccruedLiabilitiesCurrent_2">Other accrued expenses</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="OtherAccruedLiabilitiesCurrent" xlink:to="label_OtherAccruedLiabilitiesCurrent_2" xlink:title="label: OtherAccruedLiabilitiesCurrent to label_OtherAccruedLiabilitiesCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US" id="label_PaymentsToAcquirePropertyPlantAndEquipment">Purchase of fixed assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="label_PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to label_PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquirePropertyPlantAndEquipment_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquirePropertyPlantAndEquipment" xml:lang="en-US" id="label_PaymentsToAcquirePropertyPlantAndEquipment_2">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="label_PaymentsToAcquirePropertyPlantAndEquipment_2" xlink:title="label: PaymentsToAcquirePropertyPlantAndEquipment to label_PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="PaymentsToAcquireProductiveAssets" xlink:title="PaymentsToAcquireProductiveAssets" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquireProductiveAssets" xml:lang="en-US" id="label_PaymentsToAcquireProductiveAssets">Payments to Acquire Productive Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireProductiveAssets" xlink:to="label_PaymentsToAcquireProductiveAssets" xlink:title="label: PaymentsToAcquireProductiveAssets to label_PaymentsToAcquireProductiveAssets" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireProductiveAssets_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquireProductiveAssets" xml:lang="en-US" id="label_PaymentsToAcquireProductiveAssets_2">Purchase of capital assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireProductiveAssets" xlink:to="label_PaymentsToAcquireProductiveAssets_2" xlink:title="label: PaymentsToAcquireProductiveAssets to label_PaymentsToAcquireProductiveAssets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireShortTermInvestments" xlink:label="PaymentsToAcquireShortTermInvestments" xlink:title="PaymentsToAcquireShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireShortTermInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquireShortTermInvestments" xml:lang="en-US" id="label_PaymentsToAcquireShortTermInvestments">Payments to Acquire Short-term Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireShortTermInvestments" xlink:to="label_PaymentsToAcquireShortTermInvestments" xlink:title="label: PaymentsToAcquireShortTermInvestments to label_PaymentsToAcquireShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireShortTermInvestments_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquireShortTermInvestments" xml:lang="en-US" id="label_PaymentsToAcquireShortTermInvestments_2">Purchase of short term investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireShortTermInvestments" xlink:to="label_PaymentsToAcquireShortTermInvestments_2" xlink:title="label: PaymentsToAcquireShortTermInvestments to label_PaymentsToAcquireShortTermInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:title="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xml:lang="en-US" id="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock">Pension and Other Postretirement Benefits Disclosure [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:title="label: PensionAndOtherPostretirementBenefitsDisclosureTextBlock to label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xml:lang="en-US" id="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_2">RETIREMENT PLAN</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_2" xlink:title="label: PensionAndOtherPostretirementBenefitsDisclosureTextBlock to label_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="PrepaidExpenseAndOtherAssetsCurrent" xlink:title="PrepaidExpenseAndOtherAssetsCurrent" />
    <link:label xlink:type="resource" xlink:label="label_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PrepaidExpenseAndOtherAssetsCurrent" xml:lang="en-US" id="label_PrepaidExpenseAndOtherAssetsCurrent">Prepaid Expense and Other Assets, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpenseAndOtherAssetsCurrent" xlink:to="label_PrepaidExpenseAndOtherAssetsCurrent" xlink:title="label: PrepaidExpenseAndOtherAssetsCurrent to label_PrepaidExpenseAndOtherAssetsCurrent" />
    <link:label xlink:type="resource" xlink:label="label_PrepaidExpenseAndOtherAssetsCurrent_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PrepaidExpenseAndOtherAssetsCurrent" xml:lang="en-US" id="label_PrepaidExpenseAndOtherAssetsCurrent_2">Prepaid expenses and other assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PrepaidExpenseAndOtherAssetsCurrent" xlink:to="label_PrepaidExpenseAndOtherAssetsCurrent_2" xlink:title="label: PrepaidExpenseAndOtherAssetsCurrent to label_PrepaidExpenseAndOtherAssetsCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="ProceedsFromWarrantExercises" xlink:title="ProceedsFromWarrantExercises" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromWarrantExercises" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromWarrantExercises" xml:lang="en-US" id="label_ProceedsFromWarrantExercises">Proceeds from Warrant Exercises</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromWarrantExercises" xlink:to="label_ProceedsFromWarrantExercises" xlink:title="label: ProceedsFromWarrantExercises to label_ProceedsFromWarrantExercises" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromWarrantExercises_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromWarrantExercises" xml:lang="en-US" id="label_ProceedsFromWarrantExercises_2">Proceeds from common stock warrant exercises</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromWarrantExercises" xlink:to="label_ProceedsFromWarrantExercises_2" xlink:title="label: ProceedsFromWarrantExercises to label_ProceedsFromWarrantExercises" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromPaymentsForOtherFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromPaymentsForOtherFinancingActivities" xml:lang="en-US" id="label_ProceedsFromPaymentsForOtherFinancingActivities">Proceeds from (Payments for) Other Financing Activities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromPaymentsForOtherFinancingActivities" xlink:to="label_ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="label: ProceedsFromPaymentsForOtherFinancingActivities to label_ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromPaymentsForOtherFinancingActivities_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromPaymentsForOtherFinancingActivities" xml:lang="en-US" id="label_ProceedsFromPaymentsForOtherFinancingActivities_2">Cash paid for transaction related costs</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromPaymentsForOtherFinancingActivities" xlink:to="label_ProceedsFromPaymentsForOtherFinancingActivities_2" xlink:title="label: ProceedsFromPaymentsForOtherFinancingActivities to label_ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="ProceedsFromIssuanceOfCommonStock" xlink:title="ProceedsFromIssuanceOfCommonStock" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromIssuanceOfCommonStock" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStock">Proceeds from Issuance of Common Stock</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStock" xlink:to="label_ProceedsFromIssuanceOfCommonStock" xlink:title="label: ProceedsFromIssuanceOfCommonStock to label_ProceedsFromIssuanceOfCommonStock" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromIssuanceOfCommonStock" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStock_2">Proceeds from issuance of common stock by registered direct offerings</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStock" xlink:to="label_ProceedsFromIssuanceOfCommonStock_2" xlink:title="label: ProceedsFromIssuanceOfCommonStock to label_ProceedsFromIssuanceOfCommonStock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:label="ProceedsFromSaleOfProductiveAssets" xlink:title="ProceedsFromSaleOfProductiveAssets" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSaleOfProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromSaleOfProductiveAssets" xml:lang="en-US" id="label_ProceedsFromSaleOfProductiveAssets">Proceeds from Sale of Productive Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSaleOfProductiveAssets" xlink:to="label_ProceedsFromSaleOfProductiveAssets" xlink:title="label: ProceedsFromSaleOfProductiveAssets to label_ProceedsFromSaleOfProductiveAssets" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSaleOfProductiveAssets_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromSaleOfProductiveAssets" xml:lang="en-US" id="label_ProceedsFromSaleOfProductiveAssets_2">Proceeds from sale of fixed assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSaleOfProductiveAssets" xlink:to="label_ProceedsFromSaleOfProductiveAssets_2" xlink:title="label: ProceedsFromSaleOfProductiveAssets to label_ProceedsFromSaleOfProductiveAssets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:label="ProceedsFromSaleOfShortTermInvestments" xlink:title="ProceedsFromSaleOfShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSaleOfShortTermInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromSaleOfShortTermInvestments" xml:lang="en-US" id="label_ProceedsFromSaleOfShortTermInvestments">Proceeds from Sale of Short-term Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSaleOfShortTermInvestments" xlink:to="label_ProceedsFromSaleOfShortTermInvestments" xlink:title="label: ProceedsFromSaleOfShortTermInvestments to label_ProceedsFromSaleOfShortTermInvestments" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromSaleOfShortTermInvestments_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromSaleOfShortTermInvestments" xml:lang="en-US" id="label_ProceedsFromSaleOfShortTermInvestments_2">Redemption of short term investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromSaleOfShortTermInvestments" xlink:to="label_ProceedsFromSaleOfShortTermInvestments_2" xlink:title="label: ProceedsFromSaleOfShortTermInvestments to label_ProceedsFromSaleOfShortTermInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="ProceedsFromStockOptionsExercised" xlink:title="ProceedsFromStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromStockOptionsExercised" xml:lang="en-US" id="label_ProceedsFromStockOptionsExercised">Proceeds from common stock option exercises</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockOptionsExercised" xlink:to="label_ProceedsFromStockOptionsExercised" xlink:title="label: ProceedsFromStockOptionsExercised to label_ProceedsFromStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromStockOptionsExercised_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromStockOptionsExercised" xml:lang="en-US" id="label_ProceedsFromStockOptionsExercised_2">Proceeds from Stock Options Exercised</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromStockOptionsExercised" xlink:to="label_ProceedsFromStockOptionsExercised_2" xlink:title="label: ProceedsFromStockOptionsExercised to label_ProceedsFromStockOptionsExercised" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="PropertyPlantAndEquipmentAbstract" xlink:title="PropertyPlantAndEquipmentAbstract" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentAbstract" xml:lang="en-US" id="label_PropertyPlantAndEquipmentAbstract">PROPERTY AND EQUIPMENT</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentAbstract" xlink:to="label_PropertyPlantAndEquipmentAbstract" xlink:title="label: PropertyPlantAndEquipmentAbstract to label_PropertyPlantAndEquipmentAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet">Property, Plant and Equipment, Net</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentNet_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentNet" xml:lang="en-US" id="label_PropertyPlantAndEquipmentNet_2">PROPERTY AND EQUIPMENT, NET</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentNet" xlink:to="label_PropertyPlantAndEquipmentNet_2" xlink:title="label: PropertyPlantAndEquipmentNet to label_PropertyPlantAndEquipmentNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="PropertyPlantAndEquipmentDisclosureTextBlock" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PropertyPlantAndEquipmentDisclosureTextBlock" xml:lang="en-US" id="label_PropertyPlantAndEquipmentDisclosureTextBlock_2">PROPERTY AND EQUIPMENT</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="label_PropertyPlantAndEquipmentDisclosureTextBlock_2" xlink:title="label: PropertyPlantAndEquipmentDisclosureTextBlock to label_PropertyPlantAndEquipmentDisclosureTextBlock" />
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    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_QuarterlyFinancialInformationTextBlock" xml:lang="en-US" id="label_QuarterlyFinancialInformationTextBlock">Quarterly Financial Information [Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationTextBlock" xlink:to="label_QuarterlyFinancialInformationTextBlock" xlink:title="label: QuarterlyFinancialInformationTextBlock to label_QuarterlyFinancialInformationTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_QuarterlyFinancialInformationTextBlock" xml:lang="en-US" id="label_QuarterlyFinancialInformationTextBlock_2">SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationTextBlock" xlink:to="label_QuarterlyFinancialInformationTextBlock_2" xlink:title="label: QuarterlyFinancialInformationTextBlock to label_QuarterlyFinancialInformationTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="QuarterlyFinancialInformationDisclosureAbstract" xlink:title="QuarterlyFinancialInformationDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_QuarterlyFinancialInformationDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_QuarterlyFinancialInformationDisclosureAbstract" xml:lang="en-US" id="label_QuarterlyFinancialInformationDisclosureAbstract">SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="QuarterlyFinancialInformationDisclosureAbstract" xlink:to="label_QuarterlyFinancialInformationDisclosureAbstract" xlink:title="label: QuarterlyFinancialInformationDisclosureAbstract to label_QuarterlyFinancialInformationDisclosureAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense">Research and Development Expense</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentExpense_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentExpense" xml:lang="en-US" id="label_ResearchAndDevelopmentExpense_2">Research and development</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentExpense" xlink:to="label_ResearchAndDevelopmentExpense_2" xlink:title="label: ResearchAndDevelopmentExpense to label_ResearchAndDevelopmentExpense" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ResearchAndDevelopmentInProcess" xlink:label="ResearchAndDevelopmentInProcess" xlink:title="ResearchAndDevelopmentInProcess" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentInProcess" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ResearchAndDevelopmentInProcess" xml:lang="en-US" id="label_ResearchAndDevelopmentInProcess">Acquired in-process research and development</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentInProcess" xlink:to="label_ResearchAndDevelopmentInProcess" xlink:title="label: ResearchAndDevelopmentInProcess to label_ResearchAndDevelopmentInProcess" />
    <link:label xlink:type="resource" xlink:label="label_ResearchAndDevelopmentInProcess_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ResearchAndDevelopmentInProcess" xml:lang="en-US" id="label_ResearchAndDevelopmentInProcess_2">Research and Development in Process</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ResearchAndDevelopmentInProcess" xlink:to="label_ResearchAndDevelopmentInProcess_2" xlink:title="label: ResearchAndDevelopmentInProcess to label_ResearchAndDevelopmentInProcess" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit">Retained Earnings (Accumulated Deficit)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsAccumulatedDeficit_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RetainedEarningsAccumulatedDeficit" xml:lang="en-US" id="label_RetainedEarningsAccumulatedDeficit_2">Accumulated deficit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsAccumulatedDeficit" xlink:to="label_RetainedEarningsAccumulatedDeficit_2" xlink:title="label: RetainedEarningsAccumulatedDeficit to label_RetainedEarningsAccumulatedDeficit" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="RetainedEarningsMember" xlink:title="RetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RetainedEarningsMember" xml:lang="en-US" id="label_RetainedEarningsMember">Retained Earnings [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsMember" xlink:to="label_RetainedEarningsMember" xlink:title="label: RetainedEarningsMember to label_RetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:label="label_RetainedEarningsMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RetainedEarningsMember" xml:lang="en-US" id="label_RetainedEarningsMember_2">Accumulated Deficit</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RetainedEarningsMember" xlink:to="label_RetainedEarningsMember_2" xlink:title="label: RetainedEarningsMember to label_RetainedEarningsMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RevenueFromGrants" xlink:label="RevenueFromGrants" xlink:title="RevenueFromGrants" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromGrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenueFromGrants" xml:lang="en-US" id="label_RevenueFromGrants">Revenue from Grants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromGrants" xlink:to="label_RevenueFromGrants" xlink:title="label: RevenueFromGrants to label_RevenueFromGrants" />
    <link:label xlink:type="resource" xlink:label="label_RevenueFromGrants_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenueFromGrants" xml:lang="en-US" id="label_RevenueFromGrants_2">Grant revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenueFromGrants" xlink:to="label_RevenueFromGrants_2" xlink:title="label: RevenueFromGrants to label_RevenueFromGrants" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Revenues" xlink:label="Revenues" xlink:title="Revenues" />
    <link:label xlink:type="resource" xlink:label="label_Revenues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_Revenues" xml:lang="en-US" id="label_Revenues">Revenues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Revenues" xlink:to="label_Revenues" xlink:title="label: Revenues to label_Revenues" />
    <link:label xlink:type="resource" xlink:label="label_Revenues_2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_Revenues" xml:lang="en-US" id="label_Revenues_2">Total revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="Revenues" xlink:to="label_Revenues_2" xlink:title="label: Revenues to label_Revenues" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="RevenuesAbstract" xlink:title="RevenuesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_RevenuesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RevenuesAbstract" xml:lang="en-US" id="label_RevenuesAbstract">Revenues [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenuesAbstract" xlink:to="label_RevenuesAbstract" xlink:title="label: RevenuesAbstract to label_RevenuesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_RevenuesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RevenuesAbstract" xml:lang="en-US" id="label_RevenuesAbstract_2">REVENUE</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RevenuesAbstract" xlink:to="label_RevenuesAbstract_2" xlink:title="label: RevenuesAbstract to label_RevenuesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RoyaltyRevenue" xlink:label="RoyaltyRevenue" xlink:title="RoyaltyRevenue" />
    <link:label xlink:type="resource" xlink:label="label_RoyaltyRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RoyaltyRevenue" xml:lang="en-US" id="label_RoyaltyRevenue">Royalty Revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RoyaltyRevenue" xlink:to="label_RoyaltyRevenue" xlink:title="label: RoyaltyRevenue to label_RoyaltyRevenue" />
    <link:label xlink:type="resource" xlink:label="label_RoyaltyRevenue_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RoyaltyRevenue" xml:lang="en-US" id="label_RoyaltyRevenue_2">Royalty revenue</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RoyaltyRevenue" xlink:to="label_RoyaltyRevenue_2" xlink:title="label: RoyaltyRevenue to label_RoyaltyRevenue" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="ScenarioUnspecifiedDomain" xlink:title="ScenarioUnspecifiedDomain" />
    <link:label xlink:type="resource" xlink:label="label_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScenarioUnspecifiedDomain" xml:lang="en-US" id="label_ScenarioUnspecifiedDomain">Scenario, Unspecified [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScenarioUnspecifiedDomain" xlink:to="label_ScenarioUnspecifiedDomain" xlink:title="label: ScenarioUnspecifiedDomain to label_ScenarioUnspecifiedDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SeniorNotesCurrent" xlink:label="SeniorNotesCurrent" xlink:title="SeniorNotesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_SeniorNotesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SeniorNotesCurrent" xml:lang="en-US" id="label_SeniorNotesCurrent">Senior Notes, Current</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeniorNotesCurrent" xlink:to="label_SeniorNotesCurrent" xlink:title="label: SeniorNotesCurrent to label_SeniorNotesCurrent" />
    <link:label xlink:type="resource" xlink:label="label_SeniorNotesCurrent_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SeniorNotesCurrent" xml:lang="en-US" id="label_SeniorNotesCurrent_2">Current portion of convertible senior notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SeniorNotesCurrent" xlink:to="label_SeniorNotesCurrent_2" xlink:title="label: SeniorNotesCurrent to label_SeniorNotesCurrent" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensation" xml:lang="en-US" id="label_ShareBasedCompensation">Share-based Compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensation" xlink:to="label_ShareBasedCompensation" xlink:title="label: ShareBasedCompensation to label_ShareBasedCompensation" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensation_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensation" xml:lang="en-US" id="label_ShareBasedCompensation_2">Employee &amp; director stock-based compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensation" xlink:to="label_ShareBasedCompensation_2" xlink:title="label: ShareBasedCompensation to label_ShareBasedCompensation" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementTable" xlink:label="StatementTable" xlink:title="StatementTable" />
    <link:label xlink:type="resource" xlink:label="label_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementTable" xml:lang="en-US" id="label_StatementTable">Statement [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementTable" xlink:to="label_StatementTable" xlink:title="label: StatementTable to label_StatementTable" />
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    <link:label xlink:type="resource" xlink:label="label_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementScenarioAxis" xml:lang="en-US" id="label_StatementScenarioAxis">Scenario [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementScenarioAxis" xlink:to="label_StatementScenarioAxis" xlink:title="label: StatementScenarioAxis to label_StatementScenarioAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementLineItems" xlink:label="StatementLineItems" xlink:title="StatementLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementLineItems" xml:lang="en-US" id="label_StatementLineItems">Statement [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementLineItems" xlink:to="label_StatementLineItems" xlink:title="label: StatementLineItems to label_StatementLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StatementLineItems_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StatementLineItems" xml:lang="en-US" id="label_StatementLineItems_2">Statement</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementLineItems" xlink:to="label_StatementLineItems_2" xlink:title="label: StatementLineItems to label_StatementLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="StatementOfStockholdersEquityAbstract" xlink:title="StatementOfStockholdersEquityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfStockholdersEquityAbstract" xml:lang="en-US" id="label_StatementOfStockholdersEquityAbstract">Statements of Stockholders' Equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfStockholdersEquityAbstract" xlink:to="label_StatementOfStockholdersEquityAbstract" xlink:title="label: StatementOfStockholdersEquityAbstract to label_StatementOfStockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="StatementOfCashFlowsAbstract" xlink:title="StatementOfCashFlowsAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfCashFlowsAbstract" xml:lang="en-US" id="label_StatementOfCashFlowsAbstract">Condensed Statements of Cash Flows</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfCashFlowsAbstract" xlink:to="label_StatementOfCashFlowsAbstract" xlink:title="label: StatementOfCashFlowsAbstract to label_StatementOfCashFlowsAbstract" />
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    <link:label xlink:type="resource" xlink:label="label_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementEquityComponentsAxis" xml:lang="en-US" id="label_StatementEquityComponentsAxis">Equity Components [Axis]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StatementOfFinancialPositionAbstract" xml:lang="en-US" id="label_StatementOfFinancialPositionAbstract">Condensed Balance Sheets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StatementOfFinancialPositionAbstract" xlink:to="label_StatementOfFinancialPositionAbstract" xlink:title="label: StatementOfFinancialPositionAbstract to label_StatementOfFinancialPositionAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssued1" xlink:label="StockIssued1" xlink:title="StockIssued1" />
    <link:label xlink:type="resource" xlink:label="label_StockIssued1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssued1" xml:lang="en-US" id="label_StockIssued1">Stock Issued</link:label>
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    <link:label xlink:type="resource" xlink:label="label_StockIssued1_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssued1" xml:lang="en-US" id="label_StockIssued1_2">Shares issued for convertible senior notes and accrued interest</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="StockIssuedDuringPeriodSharesNewIssues" xlink:title="StockIssuedDuringPeriodSharesNewIssues" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues">Stock Issued During Period, Shares, New Issues</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesNewIssues" xlink:to="label_StockIssuedDuringPeriodSharesNewIssues" xlink:title="label: StockIssuedDuringPeriodSharesNewIssues to label_StockIssuedDuringPeriodSharesNewIssues" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesNewIssues_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesNewIssues" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesNewIssues_2">Stock issued during period (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="StockIssuedDuringPeriodSharesStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesStockOptionsExercised">Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:title="label: StockIssuedDuringPeriodSharesStockOptionsExercised to label_StockIssuedDuringPeriodSharesStockOptionsExercised" />
    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesStockOptionsExercised_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesStockOptionsExercised" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesStockOptionsExercised_2">Options exercised (in shares)</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:to="label_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_2" xlink:title="label: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract to label_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:title="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="label_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_2" xlink:title="label: StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest to label_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityAbstract" xlink:to="label_StockholdersEquityAbstract_2" xlink:title="label: StockholdersEquityAbstract to label_StockholdersEquityAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquity" xml:lang="en-US" id="label_StockholdersEquity">Stockholders' Equity Attributable to Parent</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity" xlink:title="label: StockholdersEquity to label_StockholdersEquity" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquity" xlink:to="label_StockholdersEquity_2" xlink:title="label: StockholdersEquity to label_StockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="StockholdersEquityNoteAbstract" xlink:title="StockholdersEquityNoteAbstract" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityNoteAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityNoteAbstract" xml:lang="en-US" id="label_StockholdersEquityNoteAbstract">STOCKHOLDERS' EQUITY</link:label>
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityNoteDisclosureTextBlock" xlink:to="label_StockholdersEquityNoteDisclosureTextBlock_2" xlink:title="label: StockholdersEquityNoteDisclosureTextBlock to label_StockholdersEquityNoteDisclosureTextBlock" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="WeightedAverageNumberOfSharesOutstandingAbstract" xlink:title="WeightedAverageNumberOfSharesOutstandingAbstract" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:label xlink:type="resource" xlink:label="label_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US" id="label_WeightedAverageNumberOfSharesOutstandingBasic">Weighted Average Number of Shares Outstanding, Basic</link:label>
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    <link:label xlink:type="resource" xlink:label="label_WeightedAverageNumberOfSharesOutstandingBasic_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WeightedAverageNumberOfSharesOutstandingBasic" xml:lang="en-US" id="label_WeightedAverageNumberOfSharesOutstandingBasic_2">Basic (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:label xlink:type="resource" xlink:label="label_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WeightedAverageNumberOfDilutedSharesOutstanding" xml:lang="en-US" id="label_WeightedAverageNumberOfDilutedSharesOutstanding">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="label_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="label: WeightedAverageNumberOfDilutedSharesOutstanding to label_WeightedAverageNumberOfDilutedSharesOutstanding" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:label="FairValueOptionChangesInFairValueGainLoss1" xlink:title="FairValueOptionChangesInFairValueGainLoss1" />
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    <link:label xlink:type="resource" xlink:label="label_FairValueOptionChangesInFairValueGainLoss1_4" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:title="label_FairValueOptionChangesInFairValueGainLoss1" xml:lang="en-US" id="label_FairValueOptionChangesInFairValueGainLoss1_4">Fair value adjustment</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation" xlink:label="NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation" xlink:title="NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation" />
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    <link:label xlink:type="resource" xlink:label="label_NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation" xml:lang="en-US" id="label_NumberOfVaccinesGrantedWithFDAOrphanDrugDesignation_2">Number of cancer vaccines that have been granted FDA orphan drug designation</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ScheduleOfLiquidityAndCapitalResourcesTable" xlink:label="ScheduleOfLiquidityAndCapitalResourcesTable" xlink:title="ScheduleOfLiquidityAndCapitalResourcesTable" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiquidityAndCapitalResourcesLineItems" xlink:to="label_LiquidityAndCapitalResourcesLineItems" xlink:title="label: LiquidityAndCapitalResourcesLineItems to label_LiquidityAndCapitalResourcesLineItems" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="ProceedsFromIssuanceOrSaleOfEquity" xlink:title="ProceedsFromIssuanceOrSaleOfEquity" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
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    <link:label xlink:type="resource" xlink:label="label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xml:lang="en-US" id="label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities">Number of shares issued in exchange for cancellation for debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:title="label: StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities to label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_2" xlink:title="label: StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities to label_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" xlink:label="NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" xlink:title="NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" />
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    <link:label xlink:type="resource" xlink:label="label_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" xml:lang="en-US" id="label_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued_3">Represents the number of holders of debt instrument to whom shares are issued by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" xlink:to="label_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued_3" xlink:title="label: NumberOfDebtInstrumentHoldersToWhomSharesAreIssued to label_NumberOfDebtInstrumentHoldersToWhomSharesAreIssued" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="DebtInstrumentInterestRateStatedPercentage" xlink:title="DebtInstrumentInterestRateStatedPercentage" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestRateStatedPercentage_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US" id="label_DebtInstrumentInterestRateStatedPercentage_2">Debt Instrument, Interest Rate, Stated Percentage</link:label>
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    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentInterestRateStatedPercentage" xml:lang="en-US" id="label_DebtInstrumentInterestRateStatedPercentage">Interest rate (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentInterestRateStatedPercentage" xlink:to="label_DebtInstrumentInterestRateStatedPercentage" xlink:title="label: DebtInstrumentInterestRateStatedPercentage to label_DebtInstrumentInterestRateStatedPercentage" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockOptionsMember" xlink:label="StockOptionsMember" xlink:title="StockOptionsMember" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionsMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockOptionsMember" xml:lang="en-US" id="label_StockOptionsMember_2">Stock Options [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionsMember" xlink:to="label_StockOptionsMember_2" xlink:title="label: StockOptionsMember to label_StockOptionsMember" />
    <link:label xlink:type="resource" xlink:label="label_StockOptionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockOptionsMember" xml:lang="en-US" id="label_StockOptionsMember">Stock options</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockOptionsMember" xlink:to="label_StockOptionsMember" xlink:title="label: StockOptionsMember to label_StockOptionsMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WarrantMember" xlink:label="WarrantMember" xlink:title="WarrantMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WarrantMember" xml:lang="en-US" id="label_WarrantMember_2">Warrant [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantMember" xlink:to="label_WarrantMember_2" xlink:title="label: WarrantMember to label_WarrantMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WarrantMember" xml:lang="en-US" id="label_WarrantMember">Warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantMember" xlink:to="label_WarrantMember" xlink:title="label: WarrantMember to label_WarrantMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleDebtSecuritiesMember" xlink:label="ConvertibleDebtSecuritiesMember" xlink:title="ConvertibleDebtSecuritiesMember" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleDebtSecuritiesMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleDebtSecuritiesMember" xml:lang="en-US" id="label_ConvertibleDebtSecuritiesMember_2">Convertible Debt Securities [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtSecuritiesMember" xlink:to="label_ConvertibleDebtSecuritiesMember_2" xlink:title="label: ConvertibleDebtSecuritiesMember to label_ConvertibleDebtSecuritiesMember" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleDebtSecuritiesMember" xml:lang="en-US" id="label_ConvertibleDebtSecuritiesMember">Convertible debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtSecuritiesMember" xlink:to="label_ConvertibleDebtSecuritiesMember" xlink:title="label: ConvertibleDebtSecuritiesMember to label_ConvertibleDebtSecuritiesMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MinimumMember" xlink:label="MinimumMember" xlink:title="MinimumMember" />
    <link:label xlink:type="resource" xlink:label="label_MinimumMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MinimumMember" xml:lang="en-US" id="label_MinimumMember_2">Minimum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="label_MinimumMember_2" xlink:title="label: MinimumMember to label_MinimumMember" />
    <link:label xlink:type="resource" xlink:label="label_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_MinimumMember" xml:lang="en-US" id="label_MinimumMember">Low end of range</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="label_MinimumMember" xlink:title="label: MinimumMember to label_MinimumMember" />
    <link:label xlink:type="resource" xlink:label="label_MinimumMember_3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_MinimumMember" xml:lang="en-US" id="label_MinimumMember_3">Minimum</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MinimumMember" xlink:to="label_MinimumMember_3" xlink:title="label: MinimumMember to label_MinimumMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MaximumMember" xlink:label="MaximumMember" xlink:title="MaximumMember" />
    <link:label xlink:type="resource" xlink:label="label_MaximumMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MaximumMember" xml:lang="en-US" id="label_MaximumMember_2">Maximum [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MaximumMember" xlink:to="label_MaximumMember_2" xlink:title="label: MaximumMember to label_MaximumMember" />
    <link:label xlink:type="resource" xlink:label="label_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_MaximumMember" xml:lang="en-US" id="label_MaximumMember">High end of range</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MaximumMember" xlink:to="label_MaximumMember" xlink:title="label: MaximumMember to label_MaximumMember" />
    <link:label xlink:type="resource" xlink:label="label_MaximumMember_3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:title="label_MaximumMember" xml:lang="en-US" id="label_MaximumMember_3">Maximum</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MaximumMember" xlink:to="label_MaximumMember_3" xlink:title="label: MaximumMember to label_MaximumMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" />
    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xml:lang="en-US" id="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_2">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" />
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    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xml:lang="en-US" id="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount">Number of shares excluded from computation of EPS</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" />
    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" xml:lang="en-US" id="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities">Antidilutive Securities Excluded from Computation of Earnings Per Share, Exercise Price of Securities</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities" xml:lang="en-US" id="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfSecurities_3">Represents the exercise price of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future, that were not included in the computation of diluted EPS or EPU as it would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="DebtInstrumentFaceAmount" xlink:title="DebtInstrumentFaceAmount" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentFaceAmount" xlink:to="label_DebtInstrumentFaceAmount" xlink:title="label: DebtInstrumentFaceAmount to label_DebtInstrumentFaceAmount" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentFaceAmount" xlink:to="label_DebtInstrumentFaceAmount_2" xlink:title="label: DebtInstrumentFaceAmount to label_DebtInstrumentFaceAmount" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="DebtInstrumentConvertibleConversionPrice1" xlink:title="DebtInstrumentConvertibleConversionPrice1" />
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    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleConversionPrice1_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConvertibleConversionPrice1" xml:lang="en-US" id="label_DebtInstrumentConvertibleConversionPrice1_2">Conversion price (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleConversionPrice1" xlink:to="label_DebtInstrumentConvertibleConversionPrice1_2" xlink:title="label: DebtInstrumentConvertibleConversionPrice1 to label_DebtInstrumentConvertibleConversionPrice1" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:label="RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:title="RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" />
    <link:label xlink:type="resource" xlink:label="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xml:lang="en-US" id="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers">Right of Entity to Designate Members on Board of Investee Number of Members</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:to="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:title="label: RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers to label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" />
    <link:label xlink:type="resource" xlink:label="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xml:lang="en-US" id="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers_2">Number of members that the entity can designate on board of directors of Ceregene, Inc.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xlink:to="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers_2" xlink:title="label: RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers to label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" />
    <link:label xlink:type="resource" xlink:label="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers" xml:lang="en-US" id="label_RightOfEntityToDesignateMembersOnBoardOfInvesteeNumberOfMembers_3">Represents the number of members that can be designated on board of directors of the investee by virtue of their stock ownership in that entity.</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:label="ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:title="ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock">Schedule of Fair Value Assumptions Used for Debt Instruments [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:to="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:title="label: ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock to label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_2">Schedule of key assumptions used to establish the value of the 2013 Notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:to="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_2" xlink:title="label: ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock to label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_3">Tabular disclosure of the significant assumptions used during the period to estimate the fair value of debt instruments.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" xlink:to="label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock_3" xlink:title="label: ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock to label_ScheduleOfFairValueAssumptionsUsedForDebtInstrumentsTableTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:label="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:title="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xml:lang="en-US" id="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_2">Schedule of Maturities of Long-term Debt [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:to="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_2" xlink:title="label: ScheduleOfMaturitiesOfLongTermDebtTableTextBlock to label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xml:lang="en-US" id="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock">Schedule of maturities of required principal payments by year related to the convertible senior notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:to="label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" xlink:title="label: ScheduleOfMaturitiesOfLongTermDebtTableTextBlock to label_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ConvertibleSeniorNotes3.125PercentDue2011Member" xlink:label="ConvertibleSeniorNotes3.125PercentDue2011Member" xlink:title="ConvertibleSeniorNotes3.125PercentDue2011Member" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSeniorNotes3.125PercentDue2011Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleSeniorNotes3.125PercentDue2011Member" xml:lang="en-US" id="label_ConvertibleSeniorNotes3.125PercentDue2011Member">Convertible Senior Notes 3.125 Percent Due 2011 [Member]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ConvertibleSeniorNotes3.125PercentDue2011Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleSeniorNotes3.125PercentDue2011Member" xml:lang="en-US" id="label_ConvertibleSeniorNotes3.125PercentDue2011Member_2">2011 Notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleSeniorNotes3.125PercentDue2011Member" xlink:to="label_ConvertibleSeniorNotes3.125PercentDue2011Member_2" xlink:title="label: ConvertibleSeniorNotes3.125PercentDue2011Member to label_ConvertibleSeniorNotes3.125PercentDue2011Member" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleSeniorNotes3.125PercentDue2011Member_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ConvertibleSeniorNotes3.125PercentDue2011Member" xml:lang="en-US" id="label_ConvertibleSeniorNotes3.125PercentDue2011Member_3">Represents convertible senior notes bearing an interest of 3.125 percent which mature in 2011.</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="DebtInstrumentLineItems" xlink:title="DebtInstrumentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentLineItems" xml:lang="en-US" id="label_DebtInstrumentLineItems_2">Debt Instrument [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="label_DebtInstrumentLineItems_2" xlink:title="label: DebtInstrumentLineItems to label_DebtInstrumentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentLineItems" xml:lang="en-US" id="label_DebtInstrumentLineItems">Convertible senior notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentLineItems" xlink:to="label_DebtInstrumentLineItems" xlink:title="label: DebtInstrumentLineItems to label_DebtInstrumentLineItems" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfSeriesOfConvertibleNotesAssumed" xlink:label="NumberOfSeriesOfConvertibleNotesAssumed" xlink:title="NumberOfSeriesOfConvertibleNotesAssumed" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfSeriesOfConvertibleNotesAssumed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NumberOfSeriesOfConvertibleNotesAssumed" xml:lang="en-US" id="label_NumberOfSeriesOfConvertibleNotesAssumed">Number of Series of Convertible Notes Assumed</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSeriesOfConvertibleNotesAssumed" xlink:to="label_NumberOfSeriesOfConvertibleNotesAssumed" xlink:title="label: NumberOfSeriesOfConvertibleNotesAssumed to label_NumberOfSeriesOfConvertibleNotesAssumed" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfSeriesOfConvertibleNotesAssumed_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfSeriesOfConvertibleNotesAssumed" xml:lang="en-US" id="label_NumberOfSeriesOfConvertibleNotesAssumed_2">Number of series of convertible notes assumed in merger</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSeriesOfConvertibleNotesAssumed" xlink:to="label_NumberOfSeriesOfConvertibleNotesAssumed_2" xlink:title="label: NumberOfSeriesOfConvertibleNotesAssumed to label_NumberOfSeriesOfConvertibleNotesAssumed" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfSeriesOfConvertibleNotesAssumed_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfSeriesOfConvertibleNotesAssumed" xml:lang="en-US" id="label_NumberOfSeriesOfConvertibleNotesAssumed_3">Represents the number of series of convertible notes assumed by the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfSeriesOfConvertibleNotesAssumed" xlink:to="label_NumberOfSeriesOfConvertibleNotesAssumed_3" xlink:title="label: NumberOfSeriesOfConvertibleNotesAssumed to label_NumberOfSeriesOfConvertibleNotesAssumed" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:label="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:title="DebtInstrumentConvertibleNumberOfEquityInstruments" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xml:lang="en-US" id="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2">Debt Instrument, Convertible, Number of Equity Instruments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:to="label_DebtInstrumentConvertibleNumberOfEquityInstruments_2" xlink:title="label: DebtInstrumentConvertibleNumberOfEquityInstruments to label_DebtInstrumentConvertibleNumberOfEquityInstruments" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xml:lang="en-US" id="label_DebtInstrumentConvertibleNumberOfEquityInstruments">Number of shares of common stock receivable upon conversion</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:to="label_DebtInstrumentConvertibleNumberOfEquityInstruments" xlink:title="label: DebtInstrumentConvertibleNumberOfEquityInstruments to label_DebtInstrumentConvertibleNumberOfEquityInstruments" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:label="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:title="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder">Long Term Debt, Redemption Price as Percentage of Principal Amount, Option to Holder</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_2">Percentage of principal amount at which the holder may require the entity to repurchase notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_2" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_3">Represents the percentage of principal amount used in the computation of the redemption price at which the holders may require the entity to repurchase the debt instruments on or after specified dates in case a fundamental change (as defined in the indenture) occurs.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder_3" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmountOptionToHolder" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:label="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:title="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount">Long Term Debt, Redemption Price as Percentage of Principal Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_2">Percentage of principal amount at which the entity may redeem notes in whole or in part</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_2" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xml:lang="en-US" id="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_3">Represents the percentage of principal amount used in the computation of the redemption price at which the entity may redeem some or all of the debt instruments on or after specified dates.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" xlink:to="label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount_3" xlink:title="label: LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount to label_LongTermDebtRedemptionPriceAsPercentageOfPrincipalAmount" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:label="DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:title="DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice">Debt Instrument Conversion Obligation Common Stock Closing Sales Price as Percentage of Conversion Price</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:to="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:title="label: DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice to label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_2">Percentage of the closing sales price of the entity's common stock that the conversion price must exceed in order for the notes to be convertible</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:to="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_2" xlink:title="label: DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice to label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_3">Represents the percentage of the closing sales price of the entity's common stock for at least 20 days within 30 consecutive trading days that the closing sales price of the entity's common stock must exceed the conversion price in order for the debt instruments to be convertible.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" xlink:to="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice_3" xlink:title="label: DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice to label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceAsPercentageOfConversionPrice" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:label="DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:title="DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays">Debt Instrument Conversion Obligation Common Stock Closing Sales Price Number of Trading Days</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:to="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:title="label: DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays to label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays_2">Number of days within 30 consecutive trading days in which the closing price of the entity's common stock must exceed the conversion price for the notes to be redeemable (in days)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xlink:to="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays_2" xlink:title="label: DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays to label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays" xml:lang="en-US" id="label_DebtInstrumentConversionObligationCommonStockClosingSalesPriceNumberOfTradingDays_3">Represents the number of trading days within a period of 30 consecutive trading days during which the closing price of the entity's common stock must exceed the applicable conversion price in order for the debt instruments to be convertible.</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:label="DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:title="DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" />
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    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:to="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:title="label: DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays to label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xml:lang="en-US" id="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_2">Number of consecutive trading days during which the closing price of the entity's common stock must exceed the conversion price for at least 20 days in order for the notes to be redeemable (in days)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:to="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_2" xlink:title="label: DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays to label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xml:lang="en-US" id="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_3">Represents the number of consecutive trading days during which the closing price of the entity's common stock must exceed the applicable conversion price for at least 20 days in order for the debt instruments to be convertible.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" xlink:to="label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays_3" xlink:title="label: DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays to label_DebtInstrumentConversionObligationNumberOfConsecutiveTradingDays" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="LongTermDebtFairValue" xlink:title="LongTermDebtFairValue" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtFairValue_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtFairValue" xml:lang="en-US" id="label_LongTermDebtFairValue_2">Long-term Debt, Fair Value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtFairValue" xlink:to="label_LongTermDebtFairValue_2" xlink:title="label: LongTermDebtFairValue to label_LongTermDebtFairValue" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtFairValue" xml:lang="en-US" id="label_LongTermDebtFairValue">Recorded fair value</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtFairValue" xlink:to="label_LongTermDebtFairValue" xlink:title="label: LongTermDebtFairValue to label_LongTermDebtFairValue" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:label="FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:title="FairValueOptionAggregateDifferencesLongTermDebtInstruments" />
    <link:label xlink:type="resource" xlink:label="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" xml:lang="en-US" id="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments_2">Fair Value, Option, Aggregate Differences, Long-term Debt Instruments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:to="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments_2" xlink:title="label: FairValueOptionAggregateDifferencesLongTermDebtInstruments to label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" />
    <link:label xlink:type="resource" xlink:label="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" xml:lang="en-US" id="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments">Amount of difference between aggregate recorded fair value of the notes and their total stated principal amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:to="label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" xlink:title="label: FairValueOptionAggregateDifferencesLongTermDebtInstruments to label_FairValueOptionAggregateDifferencesLongTermDebtInstruments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:label="FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:title="FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xml:lang="en-US" id="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract_2">Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:to="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract_2" xlink:title="label: FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract to label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xml:lang="en-US" id="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract">Assumptions to establish the value of the Notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:to="label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" xlink:title="label: FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract to label_FairValueAssumptionsAndMethodologyForAssetsAndLiabilitiesAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:label="FairValueAssumptionsRiskFreeInterestRate" xlink:title="FairValueAssumptionsRiskFreeInterestRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsRiskFreeInterestRate_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US" id="label_FairValueAssumptionsRiskFreeInterestRate_2">Fair Value Assumptions, Risk Free Interest Rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsRiskFreeInterestRate" xlink:to="label_FairValueAssumptionsRiskFreeInterestRate_2" xlink:title="label: FairValueAssumptionsRiskFreeInterestRate to label_FairValueAssumptionsRiskFreeInterestRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsRiskFreeInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssumptionsRiskFreeInterestRate" xml:lang="en-US" id="label_FairValueAssumptionsRiskFreeInterestRate">Average risk-free rate (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsRiskFreeInterestRate" xlink:to="label_FairValueAssumptionsRiskFreeInterestRate" xlink:title="label: FairValueAssumptionsRiskFreeInterestRate to label_FairValueAssumptionsRiskFreeInterestRate" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:label="FairValueAssumptionsExpectedVolatilityRate" xlink:title="FairValueAssumptionsExpectedVolatilityRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsExpectedVolatilityRate_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US" id="label_FairValueAssumptionsExpectedVolatilityRate_2">Fair Value Assumptions, Expected Volatility Rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsExpectedVolatilityRate" xlink:to="label_FairValueAssumptionsExpectedVolatilityRate_2" xlink:title="label: FairValueAssumptionsExpectedVolatilityRate to label_FairValueAssumptionsExpectedVolatilityRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsExpectedVolatilityRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssumptionsExpectedVolatilityRate" xml:lang="en-US" id="label_FairValueAssumptionsExpectedVolatilityRate">Volatility of BioSante common stock (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsExpectedVolatilityRate" xlink:to="label_FairValueAssumptionsExpectedVolatilityRate" xlink:title="label: FairValueAssumptionsExpectedVolatilityRate to label_FairValueAssumptionsExpectedVolatilityRate" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_FairValueAssumptionsDiscountRate" xlink:label="FairValueAssumptionsDiscountRate" xlink:title="FairValueAssumptionsDiscountRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsDiscountRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssumptionsDiscountRate" xml:lang="en-US" id="label_FairValueAssumptionsDiscountRate">Fair Value Assumptions Discount Rate</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsDiscountRate" xlink:to="label_FairValueAssumptionsDiscountRate" xlink:title="label: FairValueAssumptionsDiscountRate to label_FairValueAssumptionsDiscountRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsDiscountRate_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssumptionsDiscountRate" xml:lang="en-US" id="label_FairValueAssumptionsDiscountRate_2">Discount rate for principal payments in cash (as a percent)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsDiscountRate" xlink:to="label_FairValueAssumptionsDiscountRate_2" xlink:title="label: FairValueAssumptionsDiscountRate to label_FairValueAssumptionsDiscountRate" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssumptionsDiscountRate_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_FairValueAssumptionsDiscountRate" xml:lang="en-US" id="label_FairValueAssumptionsDiscountRate_3">Represents discount rate for principal payments in cash, an assumption used in valuation of an instrument.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssumptionsDiscountRate" xlink:to="label_FairValueAssumptionsDiscountRate_3" xlink:title="label: FairValueAssumptionsDiscountRate to label_FairValueAssumptionsDiscountRate" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtByMaturityAbstract" xlink:label="LongTermDebtByMaturityAbstract" xlink:title="LongTermDebtByMaturityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtByMaturityAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtByMaturityAbstract" xml:lang="en-US" id="label_LongTermDebtByMaturityAbstract_2">Long-term Debt, Fiscal Year Maturity [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="label_LongTermDebtByMaturityAbstract_2" xlink:title="label: LongTermDebtByMaturityAbstract to label_LongTermDebtByMaturityAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtByMaturityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtByMaturityAbstract" xml:lang="en-US" id="label_LongTermDebtByMaturityAbstract">Maturities of required principal payments by year</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtByMaturityAbstract" xlink:to="label_LongTermDebtByMaturityAbstract" xlink:title="label: LongTermDebtByMaturityAbstract to label_LongTermDebtByMaturityAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xml:lang="en-US" id="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_2">Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:to="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_2" xlink:title="label: LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear to label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xml:lang="en-US" id="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear">2012</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:to="label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" xlink:title="label: LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear to label_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:label="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xml:lang="en-US" id="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_2">Long-term Debt, Maturities, Repayments of Principal in Year Two</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_2" xlink:title="label: LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo to label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xml:lang="en-US" id="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo">2013</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:to="label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" xlink:title="label: LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo to label_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems">Stock-based compensation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment">Share Based Compensation Arrangement by Share Based Payment Award, Number of Shares Authorized before Amendment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorizedBeforeAmendment_2">Number of shares of the entity's common stock authorized for issuance under the plan before amendment</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" />
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_2" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant">Number of shares that remained available for issuance under the plan</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:title="label: ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant to label_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_2">Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice">Weighted average exercise price of options granted (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_2">Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod">Options expired and cancelled (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_2">Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpirationsInPeriod" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpirationsInPeriod" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpirationsInPeriod" />
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xlink:label="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xlink:title="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice">Share Based Compensation Arrangement by Share Based Payment Award Other than Options Expired in Period, Weighted Average Exercise Price</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_2">Weighted average exercise price of warrants expired (in dollars per share)</link:label>
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    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xml:lang="en-US" id="label_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_3">Represents the weighted average price at which grantees could have exercised the awards that were terminated during the reporting period due to noncompliance with plan terms during the reporting period.</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ScheduleOfStockholdersEquityTable" xlink:label="ScheduleOfStockholdersEquityTable" xlink:title="ScheduleOfStockholdersEquityTable" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfStockholdersEquityTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfStockholdersEquityTable" xml:lang="en-US" id="label_ScheduleOfStockholdersEquityTable">Schedule of Stockholders Equity [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_WarrantIssuedToInstitutionalInvestorsMember" xlink:label="WarrantIssuedToInstitutionalInvestorsMember" xlink:title="WarrantIssuedToInstitutionalInvestorsMember" />
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    <link:label xlink:type="resource" xlink:label="label_WarrantIssuedToInstitutionalInvestorsMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WarrantIssuedToInstitutionalInvestorsMember" xml:lang="en-US" id="label_WarrantIssuedToInstitutionalInvestorsMember_2">Warrants issued to institutional investors</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantIssuedToInstitutionalInvestorsMember" xlink:to="label_WarrantIssuedToInstitutionalInvestorsMember_2" xlink:title="label: WarrantIssuedToInstitutionalInvestorsMember to label_WarrantIssuedToInstitutionalInvestorsMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantIssuedToInstitutionalInvestorsMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_WarrantIssuedToInstitutionalInvestorsMember" xml:lang="en-US" id="label_WarrantIssuedToInstitutionalInvestorsMember_3">Represents details pertaining to warrants, which are issued to institutional investors.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantIssuedToInstitutionalInvestorsMember" xlink:to="label_WarrantIssuedToInstitutionalInvestorsMember_3" xlink:title="label: WarrantIssuedToInstitutionalInvestorsMember to label_WarrantIssuedToInstitutionalInvestorsMember" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_WarrantIssuedToPlacementAgentsMember" xlink:label="WarrantIssuedToPlacementAgentsMember" xlink:title="WarrantIssuedToPlacementAgentsMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantIssuedToPlacementAgentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_WarrantIssuedToPlacementAgentsMember" xml:lang="en-US" id="label_WarrantIssuedToPlacementAgentsMember">Warrant Issued to Placement Agents [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantIssuedToPlacementAgentsMember" xlink:to="label_WarrantIssuedToPlacementAgentsMember" xlink:title="label: WarrantIssuedToPlacementAgentsMember to label_WarrantIssuedToPlacementAgentsMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantIssuedToPlacementAgentsMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_WarrantIssuedToPlacementAgentsMember" xml:lang="en-US" id="label_WarrantIssuedToPlacementAgentsMember_2">Placement agent warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantIssuedToPlacementAgentsMember" xlink:to="label_WarrantIssuedToPlacementAgentsMember_2" xlink:title="label: WarrantIssuedToPlacementAgentsMember to label_WarrantIssuedToPlacementAgentsMember" />
    <link:label xlink:type="resource" xlink:label="label_WarrantIssuedToPlacementAgentsMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_WarrantIssuedToPlacementAgentsMember" xml:lang="en-US" id="label_WarrantIssuedToPlacementAgentsMember_3">Represents details pertaining to warrants, which are issued to placement agents.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="WarrantIssuedToPlacementAgentsMember" xlink:to="label_WarrantIssuedToPlacementAgentsMember_3" xlink:title="label: WarrantIssuedToPlacementAgentsMember to label_WarrantIssuedToPlacementAgentsMember" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockholdersEquityLineItems" xlink:label="StockholdersEquityLineItems" xlink:title="StockholdersEquityLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems">Stockholders Equity [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems_2">Stockholder's equity</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems_2" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityLineItems_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockholdersEquityLineItems" xml:lang="en-US" id="label_StockholdersEquityLineItems_3">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityLineItems" xlink:to="label_StockholdersEquityLineItems_3" xlink:title="label: StockholdersEquityLineItems to label_StockholdersEquityLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xml:lang="en-US" id="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_2">Class of Warrant or Right, Number of Securities Called by Warrants or Rights</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_2" xlink:title="label: ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights to label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xml:lang="en-US" id="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights">Warrants issued (in shares)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:title="label: ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights to label_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SharePrice" xlink:label="SharePrice" xlink:title="SharePrice" />
    <link:label xlink:type="resource" xlink:label="label_SharePrice_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_SharePrice" xml:lang="en-US" id="label_SharePrice_2">Share Price</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharePrice" xlink:to="label_SharePrice_2" xlink:title="label: SharePrice to label_SharePrice" />
    <link:label xlink:type="resource" xlink:label="label_SharePrice" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_SharePrice" xml:lang="en-US" id="label_SharePrice">Purchase price (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SharePrice" xlink:to="label_SharePrice" xlink:title="label: SharePrice to label_SharePrice" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ProceedsFromIssuanceOfCommonStockGross" xlink:label="ProceedsFromIssuanceOfCommonStockGross" xlink:title="ProceedsFromIssuanceOfCommonStockGross" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockGross" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ProceedsFromIssuanceOfCommonStockGross" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockGross">Proceeds from Issuance of Common Stock, Gross</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockGross" xlink:to="label_ProceedsFromIssuanceOfCommonStockGross" xlink:title="label: ProceedsFromIssuanceOfCommonStockGross to label_ProceedsFromIssuanceOfCommonStockGross" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockGross_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ProceedsFromIssuanceOfCommonStockGross" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockGross_2">Gross proceeds from issuance of shares</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockGross" xlink:to="label_ProceedsFromIssuanceOfCommonStockGross_2" xlink:title="label: ProceedsFromIssuanceOfCommonStockGross to label_ProceedsFromIssuanceOfCommonStockGross" />
    <link:label xlink:type="resource" xlink:label="label_ProceedsFromIssuanceOfCommonStockGross_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ProceedsFromIssuanceOfCommonStockGross" xml:lang="en-US" id="label_ProceedsFromIssuanceOfCommonStockGross_3">Represents the gross amount of cash inflow from the additional capital contribution to the entity.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ProceedsFromIssuanceOfCommonStockGross" xlink:to="label_ProceedsFromIssuanceOfCommonStockGross_3" xlink:title="label: ProceedsFromIssuanceOfCommonStockGross to label_ProceedsFromIssuanceOfCommonStockGross" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_ClassOfWarrantOrRightTermOfWarrants" xlink:label="ClassOfWarrantOrRightTermOfWarrants" xlink:title="ClassOfWarrantOrRightTermOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightTermOfWarrants" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightTermOfWarrants" xml:lang="en-US" id="label_ClassOfWarrantOrRightTermOfWarrants">Class of Warrant or Right Term of Warrants</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightTermOfWarrants" xlink:to="label_ClassOfWarrantOrRightTermOfWarrants" xlink:title="label: ClassOfWarrantOrRightTermOfWarrants to label_ClassOfWarrantOrRightTermOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightTermOfWarrants_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightTermOfWarrants" xml:lang="en-US" id="label_ClassOfWarrantOrRightTermOfWarrants_2">Term of warrants (in years)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightTermOfWarrants" xlink:to="label_ClassOfWarrantOrRightTermOfWarrants_2" xlink:title="label: ClassOfWarrantOrRightTermOfWarrants to label_ClassOfWarrantOrRightTermOfWarrants" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightTermOfWarrants_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_ClassOfWarrantOrRightTermOfWarrants" xml:lang="en-US" id="label_ClassOfWarrantOrRightTermOfWarrants_3">Represents the term over which the warrants expire.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightTermOfWarrants" xlink:to="label_ClassOfWarrantOrRightTermOfWarrants_3" xlink:title="label: ClassOfWarrantOrRightTermOfWarrants to label_ClassOfWarrantOrRightTermOfWarrants" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:label="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:title="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US" id="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_2">Class of Warrant or Right, Exercise Price of Warrants or Rights</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:to="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_2" xlink:title="label: ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights to label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xml:lang="en-US" id="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights">Exercise price (in dollars per share)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:to="label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:title="label: ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights to label_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:title="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_2">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:to="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_2" xlink:title="label: ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock to label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xml:lang="en-US" id="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock">Schedule of financial assets and liabilities recorded at fair value on a recurring basis</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:to="label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:title="label: ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock to label_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="FairValueMeasurementsRecurringMember" xlink:title="FairValueMeasurementsRecurringMember" />
    <link:label xlink:type="resource" xlink:label="label_FairValueMeasurementsRecurringMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueMeasurementsRecurringMember" xml:lang="en-US" id="label_FairValueMeasurementsRecurringMember_2">Fair Value, Measurements, Recurring [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementsRecurringMember" xlink:to="label_FairValueMeasurementsRecurringMember_2" xlink:title="label: FairValueMeasurementsRecurringMember to label_FairValueMeasurementsRecurringMember" />
    <link:label xlink:type="resource" xlink:label="label_FairValueMeasurementsRecurringMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueMeasurementsRecurringMember" xml:lang="en-US" id="label_FairValueMeasurementsRecurringMember">Recurring basis</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementsRecurringMember" xlink:to="label_FairValueMeasurementsRecurringMember" xlink:title="label: FairValueMeasurementsRecurringMember to label_FairValueMeasurementsRecurringMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="EstimateOfFairValueFairValueDisclosureMember" xlink:title="EstimateOfFairValueFairValueDisclosureMember" />
    <link:label xlink:type="resource" xlink:label="label_EstimateOfFairValueFairValueDisclosureMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US" id="label_EstimateOfFairValueFairValueDisclosureMember_2">Estimate of Fair Value, Fair Value Disclosure [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EstimateOfFairValueFairValueDisclosureMember" xlink:to="label_EstimateOfFairValueFairValueDisclosureMember_2" xlink:title="label: EstimateOfFairValueFairValueDisclosureMember to label_EstimateOfFairValueFairValueDisclosureMember" />
    <link:label xlink:type="resource" xlink:label="label_EstimateOfFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_EstimateOfFairValueFairValueDisclosureMember" xml:lang="en-US" id="label_EstimateOfFairValueFairValueDisclosureMember">Total</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EstimateOfFairValueFairValueDisclosureMember" xlink:to="label_EstimateOfFairValueFairValueDisclosureMember" xlink:title="label: EstimateOfFairValueFairValueDisclosureMember to label_EstimateOfFairValueFairValueDisclosureMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="FairValueInputsLevel1Member" xlink:title="FairValueInputsLevel1Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel1Member_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueInputsLevel1Member" xml:lang="en-US" id="label_FairValueInputsLevel1Member_2">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel1Member" xlink:to="label_FairValueInputsLevel1Member_2" xlink:title="label: FairValueInputsLevel1Member to label_FairValueInputsLevel1Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel1Member" xml:lang="en-US" id="label_FairValueInputsLevel1Member">Quoted Prices in Active Markets for Identical Assets (Level 1)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel1Member" xlink:to="label_FairValueInputsLevel1Member" xlink:title="label: FairValueInputsLevel1Member to label_FairValueInputsLevel1Member" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="FairValueInputsLevel2Member" xlink:title="FairValueInputsLevel2Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel2Member_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueInputsLevel2Member" xml:lang="en-US" id="label_FairValueInputsLevel2Member_2">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel2Member" xlink:to="label_FairValueInputsLevel2Member_2" xlink:title="label: FairValueInputsLevel2Member to label_FairValueInputsLevel2Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel2Member" xml:lang="en-US" id="label_FairValueInputsLevel2Member">Significant Other Observable Inputs (Level 2)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel2Member" xlink:to="label_FairValueInputsLevel2Member" xlink:title="label: FairValueInputsLevel2Member to label_FairValueInputsLevel2Member" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="FairValueInputsLevel3Member" xlink:title="FairValueInputsLevel3Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel3Member_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueInputsLevel3Member" xml:lang="en-US" id="label_FairValueInputsLevel3Member_2">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel3Member" xlink:to="label_FairValueInputsLevel3Member_2" xlink:title="label: FairValueInputsLevel3Member to label_FairValueInputsLevel3Member" />
    <link:label xlink:type="resource" xlink:label="label_FairValueInputsLevel3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueInputsLevel3Member" xml:lang="en-US" id="label_FairValueInputsLevel3Member">Significant Other Unobservable Inputs (Level 3)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueInputsLevel3Member" xlink:to="label_FairValueInputsLevel3Member" xlink:title="label: FairValueInputsLevel3Member to label_FairValueInputsLevel3Member" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="MoneyMarketFundsMember" xlink:title="MoneyMarketFundsMember" />
    <link:label xlink:type="resource" xlink:label="label_MoneyMarketFundsMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_MoneyMarketFundsMember" xml:lang="en-US" id="label_MoneyMarketFundsMember_2">Money Market Funds [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoneyMarketFundsMember" xlink:to="label_MoneyMarketFundsMember_2" xlink:title="label: MoneyMarketFundsMember to label_MoneyMarketFundsMember" />
    <link:label xlink:type="resource" xlink:label="label_MoneyMarketFundsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_MoneyMarketFundsMember" xml:lang="en-US" id="label_MoneyMarketFundsMember">Money market fund</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MoneyMarketFundsMember" xlink:to="label_MoneyMarketFundsMember" xlink:title="label: MoneyMarketFundsMember to label_MoneyMarketFundsMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xml:lang="en-US" id="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_2">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_2" xlink:title="label: FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xml:lang="en-US" id="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">Fair value of assets and liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:title="label: FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems to label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="AssetsFairValueDisclosureAbstract" xlink:title="AssetsFairValueDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AssetsFairValueDisclosureAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsFairValueDisclosureAbstract" xml:lang="en-US" id="label_AssetsFairValueDisclosureAbstract_2">Assets, Fair Value Disclosure [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsFairValueDisclosureAbstract" xlink:to="label_AssetsFairValueDisclosureAbstract_2" xlink:title="label: AssetsFairValueDisclosureAbstract to label_AssetsFairValueDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AssetsFairValueDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AssetsFairValueDisclosureAbstract" xml:lang="en-US" id="label_AssetsFairValueDisclosureAbstract">Assets:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsFairValueDisclosureAbstract" xlink:to="label_AssetsFairValueDisclosureAbstract" xlink:title="label: AssetsFairValueDisclosureAbstract to label_AssetsFairValueDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="AssetsFairValueDisclosure" xlink:title="AssetsFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="label_AssetsFairValueDisclosure_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AssetsFairValueDisclosure" xml:lang="en-US" id="label_AssetsFairValueDisclosure_2">Assets, Fair Value Disclosure</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsFairValueDisclosure" xlink:to="label_AssetsFairValueDisclosure_2" xlink:title="label: AssetsFairValueDisclosure to label_AssetsFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="label_AssetsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AssetsFairValueDisclosure" xml:lang="en-US" id="label_AssetsFairValueDisclosure">Total Assets</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsFairValueDisclosure" xlink:to="label_AssetsFairValueDisclosure" xlink:title="label: AssetsFairValueDisclosure to label_AssetsFairValueDisclosure" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract" xlink:label="LiabilitiesFairValueDisclosureAbstract" xlink:title="LiabilitiesFairValueDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesFairValueDisclosureAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesFairValueDisclosureAbstract" xml:lang="en-US" id="label_LiabilitiesFairValueDisclosureAbstract_2">Liabilities, Fair Value Disclosure [Abstract]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesFairValueDisclosureAbstract" xlink:to="label_LiabilitiesFairValueDisclosureAbstract_2" xlink:title="label: LiabilitiesFairValueDisclosureAbstract to label_LiabilitiesFairValueDisclosureAbstract" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesFairValueDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiabilitiesFairValueDisclosureAbstract" xml:lang="en-US" id="label_LiabilitiesFairValueDisclosureAbstract">Liabilities:</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesFairValueDisclosureAbstract" xlink:to="label_LiabilitiesFairValueDisclosureAbstract" xlink:title="label: LiabilitiesFairValueDisclosureAbstract to label_LiabilitiesFairValueDisclosureAbstract" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleDebtFairValueDisclosures" xlink:label="ConvertibleDebtFairValueDisclosures" xlink:title="ConvertibleDebtFairValueDisclosures" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleDebtFairValueDisclosures_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleDebtFairValueDisclosures" xml:lang="en-US" id="label_ConvertibleDebtFairValueDisclosures_2">Convertible Debt, Fair Value Disclosures</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtFairValueDisclosures" xlink:to="label_ConvertibleDebtFairValueDisclosures_2" xlink:title="label: ConvertibleDebtFairValueDisclosures to label_ConvertibleDebtFairValueDisclosures" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleDebtFairValueDisclosures" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleDebtFairValueDisclosures" xml:lang="en-US" id="label_ConvertibleDebtFairValueDisclosures">Fair value of convertible debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleDebtFairValueDisclosures" xlink:to="label_ConvertibleDebtFairValueDisclosures" xlink:title="label: ConvertibleDebtFairValueDisclosures to label_ConvertibleDebtFairValueDisclosures" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="LiabilitiesFairValueDisclosure" xlink:title="LiabilitiesFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesFairValueDisclosure_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LiabilitiesFairValueDisclosure" xml:lang="en-US" id="label_LiabilitiesFairValueDisclosure_2">Liabilities, Fair Value Disclosure</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesFairValueDisclosure" xlink:to="label_LiabilitiesFairValueDisclosure_2" xlink:title="label: LiabilitiesFairValueDisclosure to label_LiabilitiesFairValueDisclosure" />
    <link:label xlink:type="resource" xlink:label="label_LiabilitiesFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LiabilitiesFairValueDisclosure" xml:lang="en-US" id="label_LiabilitiesFairValueDisclosure">Total liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LiabilitiesFairValueDisclosure" xlink:to="label_LiabilitiesFairValueDisclosure" xlink:title="label: LiabilitiesFairValueDisclosure to label_LiabilitiesFairValueDisclosure" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebt_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermDebt" xml:lang="en-US" id="label_LongTermDebt_2">Long-term Debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebt" xlink:to="label_LongTermDebt_2" xlink:title="label: LongTermDebt to label_LongTermDebt" />
    <link:label xlink:type="resource" xlink:label="label_LongTermDebt" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:title="label_LongTermDebt" xml:lang="en-US" id="label_LongTermDebt">Total</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermDebt" xlink:to="label_LongTermDebt" xlink:title="label: LongTermDebt to label_LongTermDebt" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleNotesPayableMember" xlink:label="ConvertibleNotesPayableMember" xlink:title="ConvertibleNotesPayableMember" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleNotesPayableMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ConvertibleNotesPayableMember" xml:lang="en-US" id="label_ConvertibleNotesPayableMember_2">Convertible Notes Payable [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesPayableMember" xlink:to="label_ConvertibleNotesPayableMember_2" xlink:title="label: ConvertibleNotesPayableMember to label_ConvertibleNotesPayableMember" />
    <link:label xlink:type="resource" xlink:label="label_ConvertibleNotesPayableMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_ConvertibleNotesPayableMember" xml:lang="en-US" id="label_ConvertibleNotesPayableMember">2013 Notes</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConvertibleNotesPayableMember" xlink:to="label_ConvertibleNotesPayableMember" xlink:title="label: ConvertibleNotesPayableMember to label_ConvertibleNotesPayableMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xml:lang="en-US" id="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:title="label: FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable to label_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="FairValueByMeasurementFrequencyAxis" xlink:title="FairValueByMeasurementFrequencyAxis" />
    <link:label xlink:type="resource" xlink:label="label_FairValueByMeasurementFrequencyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueByMeasurementFrequencyAxis" xml:lang="en-US" id="label_FairValueByMeasurementFrequencyAxis">Measurement Frequency [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueByMeasurementFrequencyAxis" xlink:to="label_FairValueByMeasurementFrequencyAxis" xlink:title="label: FairValueByMeasurementFrequencyAxis to label_FairValueByMeasurementFrequencyAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="FairValueMeasurementFrequencyDomain" xlink:title="FairValueMeasurementFrequencyDomain" />
    <link:label xlink:type="resource" xlink:label="label_FairValueMeasurementFrequencyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueMeasurementFrequencyDomain" xml:lang="en-US" id="label_FairValueMeasurementFrequencyDomain">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementFrequencyDomain" xlink:to="label_FairValueMeasurementFrequencyDomain" xlink:title="label: FairValueMeasurementFrequencyDomain to label_FairValueMeasurementFrequencyDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="FairValueByFairValueHierarchyLevelAxis" xlink:title="FairValueByFairValueHierarchyLevelAxis" />
    <link:label xlink:type="resource" xlink:label="label_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueByFairValueHierarchyLevelAxis" xml:lang="en-US" id="label_FairValueByFairValueHierarchyLevelAxis">Fair Value, Hierarchy [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueByFairValueHierarchyLevelAxis" xlink:to="label_FairValueByFairValueHierarchyLevelAxis" xlink:title="label: FairValueByFairValueHierarchyLevelAxis to label_FairValueByFairValueHierarchyLevelAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="FairValueMeasurementsFairValueHierarchyDomain" xlink:title="FairValueMeasurementsFairValueHierarchyDomain" />
    <link:label xlink:type="resource" xlink:label="label_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueMeasurementsFairValueHierarchyDomain" xml:lang="en-US" id="label_FairValueMeasurementsFairValueHierarchyDomain">Fair Value, Measurements, Fair Value Hierarchy [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueMeasurementsFairValueHierarchyDomain" xlink:to="label_FairValueMeasurementsFairValueHierarchyDomain" xlink:title="label: FairValueMeasurementsFairValueHierarchyDomain to label_FairValueMeasurementsFairValueHierarchyDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="FairValueByAssetClassAxis" xlink:title="FairValueByAssetClassAxis" />
    <link:label xlink:type="resource" xlink:label="label_FairValueByAssetClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueByAssetClassAxis" xml:lang="en-US" id="label_FairValueByAssetClassAxis">Asset Class [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueByAssetClassAxis" xlink:to="label_FairValueByAssetClassAxis" xlink:title="label: FairValueByAssetClassAxis to label_FairValueByAssetClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" />
    <link:label xlink:type="resource" xlink:label="label_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xml:lang="en-US" id="label_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain">Fair Value by Asset Class [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="label_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:title="label: FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain to label_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="FairValueByLiabilityClassAxis" xlink:title="FairValueByLiabilityClassAxis" />
    <link:label xlink:type="resource" xlink:label="label_FairValueByLiabilityClassAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueByLiabilityClassAxis" xml:lang="en-US" id="label_FairValueByLiabilityClassAxis">Liability Class [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueByLiabilityClassAxis" xlink:to="label_FairValueByLiabilityClassAxis" xlink:title="label: FairValueByLiabilityClassAxis to label_FairValueByLiabilityClassAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:title="FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" />
    <link:label xlink:type="resource" xlink:label="label_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xml:lang="en-US" id="label_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain">Fair Value by Liability Class [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:to="label_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:title="label: FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain to label_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="LongtermDebtTypeAxis" xlink:title="LongtermDebtTypeAxis" />
    <link:label xlink:type="resource" xlink:label="label_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongtermDebtTypeAxis" xml:lang="en-US" id="label_LongtermDebtTypeAxis">Long-term Debt, Type [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="LongtermDebtTypeDomain" xlink:title="LongtermDebtTypeDomain" />
    <link:label xlink:type="resource" xlink:label="label_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongtermDebtTypeDomain" xml:lang="en-US" id="label_LongtermDebtTypeDomain">Long-term Debt, Type [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongtermDebtTypeDomain" xlink:to="label_LongtermDebtTypeDomain" xlink:title="label: LongtermDebtTypeDomain to label_LongtermDebtTypeDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="DebtInstrumentTable" xlink:title="DebtInstrumentTable" />
    <link:label xlink:type="resource" xlink:label="label_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_DebtInstrumentTable" xml:lang="en-US" id="label_DebtInstrumentTable">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DebtInstrumentTable" xlink:to="label_DebtInstrumentTable" xlink:title="label: DebtInstrumentTable to label_DebtInstrumentTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="BusinessAcquisitionAxis" xlink:title="BusinessAcquisitionAxis" />
    <link:label xlink:type="resource" xlink:label="label_BusinessAcquisitionAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BusinessAcquisitionAxis" xml:lang="en-US" id="label_BusinessAcquisitionAxis">Business Acquisition [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessAcquisitionAxis" xlink:to="label_BusinessAcquisitionAxis" xlink:title="label: BusinessAcquisitionAxis to label_BusinessAcquisitionAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="BusinessAcquisitionAcquireeDomain" xlink:title="BusinessAcquisitionAcquireeDomain" />
    <link:label xlink:type="resource" xlink:label="label_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_BusinessAcquisitionAcquireeDomain" xml:lang="en-US" id="label_BusinessAcquisitionAcquireeDomain">Business Acquisition, Acquiree [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BusinessAcquisitionAcquireeDomain" xlink:to="label_BusinessAcquisitionAcquireeDomain" xlink:title="label: BusinessAcquisitionAcquireeDomain to label_BusinessAcquisitionAcquireeDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:title="ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xml:lang="en-US" id="label_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="label_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:title="label: ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable to label_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" />
    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xml:lang="en-US" id="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis">Antidilutive Securities [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:title="label: AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis to label_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="AntidilutiveSecuritiesNameDomain" xlink:title="AntidilutiveSecuritiesNameDomain" />
    <link:label xlink:type="resource" xlink:label="label_AntidilutiveSecuritiesNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AntidilutiveSecuritiesNameDomain" xml:lang="en-US" id="label_AntidilutiveSecuritiesNameDomain">Antidilutive Securities, Name [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AntidilutiveSecuritiesNameDomain" xlink:to="label_AntidilutiveSecuritiesNameDomain" xlink:title="label: AntidilutiveSecuritiesNameDomain to label_AntidilutiveSecuritiesNameDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RangeAxis" xlink:label="RangeAxis" xlink:title="RangeAxis" />
    <link:label xlink:type="resource" xlink:label="label_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RangeAxis" xml:lang="en-US" id="label_RangeAxis">Range [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeAxis" xlink:to="label_RangeAxis" xlink:title="label: RangeAxis to label_RangeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RangeMember" xlink:label="RangeMember" xlink:title="RangeMember" />
    <link:label xlink:type="resource" xlink:label="label_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_RangeMember" xml:lang="en-US" id="label_RangeMember">Range [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="RangeMember" xlink:to="label_RangeMember" xlink:title="label: RangeMember to label_RangeMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <link:label xlink:type="resource" xlink:label="label_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xml:lang="en-US" id="label_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="label_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:title="label: ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable to label_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="AwardTypeAxis" xlink:title="AwardTypeAxis" />
    <link:label xlink:type="resource" xlink:label="label_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AwardTypeAxis" xml:lang="en-US" id="label_AwardTypeAxis">Award Type [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AwardTypeAxis" xlink:to="label_AwardTypeAxis" xlink:title="label: AwardTypeAxis to label_AwardTypeAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <link:label xlink:type="resource" xlink:label="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xml:lang="en-US" id="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain">Award Type [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:title="label: ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain to label_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="InvestmentIncomeInterest" xlink:title="InvestmentIncomeInterest" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InvestmentIncomeInterest" xml:lang="en-US" id="label_InvestmentIncomeInterest">Interest income</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeInterest" xlink:to="label_InvestmentIncomeInterest" xlink:title="label: InvestmentIncomeInterest to label_InvestmentIncomeInterest" />
    <link:label xlink:type="resource" xlink:label="label_InvestmentIncomeInterest_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InvestmentIncomeInterest" xml:lang="en-US" id="label_InvestmentIncomeInterest_2">Investment Income, Interest</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentIncomeInterest" xlink:to="label_InvestmentIncomeInterest_2" xlink:title="label: InvestmentIncomeInterest to label_InvestmentIncomeInterest" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:title="AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" />
    <link:label xlink:type="resource" xlink:label="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US" id="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_2">Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
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    <link:label xlink:type="resource" xlink:label="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xml:lang="en-US" id="label_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">Adjustments to reconcile net loss to net cash (used in) operations</link:label>
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    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="ClassOfWarrantOrRightAxis" xlink:title="ClassOfWarrantOrRightAxis" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightAxis" xml:lang="en-US" id="label_ClassOfWarrantOrRightAxis">Class of Warrant or Right [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightAxis" xlink:to="label_ClassOfWarrantOrRightAxis" xlink:title="label: ClassOfWarrantOrRightAxis to label_ClassOfWarrantOrRightAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="ClassOfWarrantOrRightDomain" xlink:title="ClassOfWarrantOrRightDomain" />
    <link:label xlink:type="resource" xlink:label="label_ClassOfWarrantOrRightDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_ClassOfWarrantOrRightDomain" xml:lang="en-US" id="label_ClassOfWarrantOrRightDomain">Class of Warrant or Right [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ClassOfWarrantOrRightDomain" xlink:to="label_ClassOfWarrantOrRightDomain" xlink:title="label: ClassOfWarrantOrRightDomain to label_ClassOfWarrantOrRightDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireInvestments" xlink:label="PaymentsToAcquireInvestments" xlink:title="PaymentsToAcquireInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToAcquireInvestments" xml:lang="en-US" id="label_PaymentsToAcquireInvestments">Payments to Acquire Investments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireInvestments" xlink:to="label_PaymentsToAcquireInvestments" xlink:title="label: PaymentsToAcquireInvestments to label_PaymentsToAcquireInvestments" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToAcquireInvestments_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToAcquireInvestments" xml:lang="en-US" id="label_PaymentsToAcquireInvestments_2">Purchase of investment</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToAcquireInvestments" xlink:to="label_PaymentsToAcquireInvestments_2" xlink:title="label: PaymentsToAcquireInvestments to label_PaymentsToAcquireInvestments" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_PaymentsToFractionalSharePayout" xlink:label="PaymentsToFractionalSharePayout" xlink:title="PaymentsToFractionalSharePayout" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToFractionalSharePayout" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PaymentsToFractionalSharePayout" xml:lang="en-US" id="label_PaymentsToFractionalSharePayout">Payments to Fractional Share Payout</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToFractionalSharePayout" xlink:to="label_PaymentsToFractionalSharePayout" xlink:title="label: PaymentsToFractionalSharePayout to label_PaymentsToFractionalSharePayout" />
    <link:label xlink:type="resource" xlink:label="label_PaymentsToFractionalSharePayout_2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:title="label_PaymentsToFractionalSharePayout" xml:lang="en-US" id="label_PaymentsToFractionalSharePayout_2">Fractional share payout</link:label>
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    <link:label xlink:type="resource" xlink:label="label_PaymentsToFractionalSharePayout_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PaymentsToFractionalSharePayout" xml:lang="en-US" id="label_PaymentsToFractionalSharePayout_3">Represents payments of fractional shares as a result of reverse stock split.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PaymentsToFractionalSharePayout" xlink:to="label_PaymentsToFractionalSharePayout_3" xlink:title="label: PaymentsToFractionalSharePayout to label_PaymentsToFractionalSharePayout" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_StockholdersEquityReverseStockSplitConversionRatio" xlink:label="StockholdersEquityReverseStockSplitConversionRatio" xlink:title="StockholdersEquityReverseStockSplitConversionRatio" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityReverseStockSplitConversionRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_StockholdersEquityReverseStockSplitConversionRatio" xml:lang="en-US" id="label_StockholdersEquityReverseStockSplitConversionRatio">Stockholders Equity Reverse, Stock Split Conversion Ratio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityReverseStockSplitConversionRatio" xlink:to="label_StockholdersEquityReverseStockSplitConversionRatio" xlink:title="label: StockholdersEquityReverseStockSplitConversionRatio to label_StockholdersEquityReverseStockSplitConversionRatio" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityReverseStockSplitConversionRatio_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_StockholdersEquityReverseStockSplitConversionRatio" xml:lang="en-US" id="label_StockholdersEquityReverseStockSplitConversionRatio_2">Reverse stock split conversion ratio</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityReverseStockSplitConversionRatio" xlink:to="label_StockholdersEquityReverseStockSplitConversionRatio_2" xlink:title="label: StockholdersEquityReverseStockSplitConversionRatio to label_StockholdersEquityReverseStockSplitConversionRatio" />
    <link:label xlink:type="resource" xlink:label="label_StockholdersEquityReverseStockSplitConversionRatio_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_StockholdersEquityReverseStockSplitConversionRatio" xml:lang="en-US" id="label_StockholdersEquityReverseStockSplitConversionRatio_3">Represents the conversion ratio used in the calculation of reverse stock split.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="StockholdersEquityReverseStockSplitConversionRatio" xlink:to="label_StockholdersEquityReverseStockSplitConversionRatio_3" xlink:title="label: StockholdersEquityReverseStockSplitConversionRatio to label_StockholdersEquityReverseStockSplitConversionRatio" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:label="NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:title="NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xml:lang="en-US" id="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing">Number of Products or Technologies Licensed by Entity as Alternative to Raising Additional Financing</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:to="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:title="label: NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing to label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xml:lang="en-US" id="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_2">Number of products or technologies licensed by the entity as an alternative to raising additional financing</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:to="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_2" xlink:title="label: NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing to label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xml:lang="en-US" id="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_3">Represents the number of products or technologies licensed by the entity as an alternative to raising additional financing.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" xlink:to="label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing_3" xlink:title="label: NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing to label_NumberOfProductsOrTechnologiesLicensedByEntityAsAlternativeToRaisingAdditionalFinancing" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:label="FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:title="FairValueOptionCreditRiskGainsLossesOnLiabilities" />
    <link:label xlink:type="resource" xlink:label="label_FairValueOptionCreditRiskGainsLossesOnLiabilities_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_FairValueOptionCreditRiskGainsLossesOnLiabilities" xml:lang="en-US" id="label_FairValueOptionCreditRiskGainsLossesOnLiabilities_2">Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:to="label_FairValueOptionCreditRiskGainsLossesOnLiabilities_2" xlink:title="label: FairValueOptionCreditRiskGainsLossesOnLiabilities to label_FairValueOptionCreditRiskGainsLossesOnLiabilities" />
    <link:label xlink:type="resource" xlink:label="label_FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_FairValueOptionCreditRiskGainsLossesOnLiabilities" xml:lang="en-US" id="label_FairValueOptionCreditRiskGainsLossesOnLiabilities">Fair value adjustment attributable to the change in instrument specific credit risk</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:to="label_FairValueOptionCreditRiskGainsLossesOnLiabilities" xlink:title="label: FairValueOptionCreditRiskGainsLossesOnLiabilities to label_FairValueOptionCreditRiskGainsLossesOnLiabilities" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_AptarPharmaMember" xlink:label="AptarPharmaMember" xlink:title="AptarPharmaMember" />
    <link:label xlink:type="resource" xlink:label="label_AptarPharmaMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_AptarPharmaMember" xml:lang="en-US" id="label_AptarPharmaMember">Aptar Pharma [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AptarPharmaMember" xlink:to="label_AptarPharmaMember" xlink:title="label: AptarPharmaMember to label_AptarPharmaMember" />
    <link:label xlink:type="resource" xlink:label="label_AptarPharmaMember_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_AptarPharmaMember" xml:lang="en-US" id="label_AptarPharmaMember_2">Aptar Pharma</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AptarPharmaMember" xlink:to="label_AptarPharmaMember_2" xlink:title="label: AptarPharmaMember to label_AptarPharmaMember" />
    <link:label xlink:type="resource" xlink:label="label_AptarPharmaMember_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_AptarPharmaMember" xml:lang="en-US" id="label_AptarPharmaMember_3">Represents the details pertaining to Aptar Pharma.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AptarPharmaMember" xlink:to="label_AptarPharmaMember_3" xlink:title="label: AptarPharmaMember to label_AptarPharmaMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CapitalAdditionsMember" xlink:label="CapitalAdditionsMember" xlink:title="CapitalAdditionsMember" />
    <link:label xlink:type="resource" xlink:label="label_CapitalAdditionsMember_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_CapitalAdditionsMember" xml:lang="en-US" id="label_CapitalAdditionsMember_2">Capital Addition Purchase Commitments [Member]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalAdditionsMember" xlink:to="label_CapitalAdditionsMember_2" xlink:title="label: CapitalAdditionsMember to label_CapitalAdditionsMember" />
    <link:label xlink:type="resource" xlink:label="label_CapitalAdditionsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_CapitalAdditionsMember" xml:lang="en-US" id="label_CapitalAdditionsMember">Gel Packaging Machine</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalAdditionsMember" xlink:to="label_CapitalAdditionsMember" xlink:title="label: CapitalAdditionsMember to label_CapitalAdditionsMember" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermPurchaseCommitmentLineItems" xlink:label="LongTermPurchaseCommitmentLineItems" xlink:title="LongTermPurchaseCommitmentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentLineItems_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermPurchaseCommitmentLineItems" xml:lang="en-US" id="label_LongTermPurchaseCommitmentLineItems_2">Long-term Purchase Commitment [Line Items]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentLineItems" xlink:to="label_LongTermPurchaseCommitmentLineItems_2" xlink:title="label: LongTermPurchaseCommitmentLineItems to label_LongTermPurchaseCommitmentLineItems" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermPurchaseCommitmentLineItems" xml:lang="en-US" id="label_LongTermPurchaseCommitmentLineItems">Commitment and contingencies</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentLineItems" xlink:to="label_LongTermPurchaseCommitmentLineItems" xlink:title="label: LongTermPurchaseCommitmentLineItems to label_LongTermPurchaseCommitmentLineItems" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:label="PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:title="PurchaseCommitmentCumulativePaymentsToAcquireMachinery" />
    <link:label xlink:type="resource" xlink:label="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xml:lang="en-US" id="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery">Purchase Commitment Cumulative Payments to Acquire Machinery</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:to="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:title="label: PurchaseCommitmentCumulativePaymentsToAcquireMachinery to label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" />
    <link:label xlink:type="resource" xlink:label="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xml:lang="en-US" id="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_2">Amount paid</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:to="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_2" xlink:title="label: PurchaseCommitmentCumulativePaymentsToAcquireMachinery to label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" />
    <link:label xlink:type="resource" xlink:label="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xml:lang="en-US" id="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_3">Represents the cumulative amount paid by the entity for purchase of machinery.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseCommitmentCumulativePaymentsToAcquireMachinery" xlink:to="label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery_3" xlink:title="label: PurchaseCommitmentCumulativePaymentsToAcquireMachinery to label_PurchaseCommitmentCumulativePaymentsToAcquireMachinery" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermPurchaseCommitmentAmount" xlink:label="LongTermPurchaseCommitmentAmount" xlink:title="LongTermPurchaseCommitmentAmount" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentAmount_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermPurchaseCommitmentAmount" xml:lang="en-US" id="label_LongTermPurchaseCommitmentAmount_2">Long-term Purchase Commitment, Amount</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentAmount" xlink:to="label_LongTermPurchaseCommitmentAmount_2" xlink:title="label: LongTermPurchaseCommitmentAmount to label_LongTermPurchaseCommitmentAmount" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_LongTermPurchaseCommitmentAmount" xml:lang="en-US" id="label_LongTermPurchaseCommitmentAmount">Amount of commitment to purchase machinery</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentAmount" xlink:to="label_LongTermPurchaseCommitmentAmount" xlink:title="label: LongTermPurchaseCommitmentAmount to label_LongTermPurchaseCommitmentAmount" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PurchaseObligation" xlink:label="PurchaseObligation" xlink:title="PurchaseObligation" />
    <link:label xlink:type="resource" xlink:label="label_PurchaseObligation_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_PurchaseObligation" xml:lang="en-US" id="label_PurchaseObligation_2">Purchase Obligation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseObligation" xlink:to="label_PurchaseObligation_2" xlink:title="label: PurchaseObligation to label_PurchaseObligation" />
    <link:label xlink:type="resource" xlink:label="label_PurchaseObligation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_PurchaseObligation" xml:lang="en-US" id="label_PurchaseObligation">Remaining obligation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="PurchaseObligation" xlink:to="label_PurchaseObligation" xlink:title="label: PurchaseObligation to label_PurchaseObligation" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_LegalEntityAxis" xlink:label="LegalEntityAxis" xlink:title="LegalEntityAxis" />
    <link:label xlink:type="resource" xlink:label="label_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LegalEntityAxis" xml:lang="en-US" id="label_LegalEntityAxis">Legal Entity [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LegalEntityAxis" xlink:to="label_LegalEntityAxis" xlink:title="label: LegalEntityAxis to label_LegalEntityAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityDomain" xlink:label="EntityDomain" xlink:title="EntityDomain" />
    <link:label xlink:type="resource" xlink:label="label_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_EntityDomain" xml:lang="en-US" id="label_EntityDomain">Entity [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EntityDomain" xlink:to="label_EntityDomain" xlink:title="label: EntityDomain to label_EntityDomain" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermPurchaseCommitmentTable" xlink:label="LongTermPurchaseCommitmentTable" xlink:title="LongTermPurchaseCommitmentTable" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermPurchaseCommitmentTable" xml:lang="en-US" id="label_LongTermPurchaseCommitmentTable">Long-term Purchase Commitment [Table]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentTable" xlink:to="label_LongTermPurchaseCommitmentTable" xlink:title="label: LongTermPurchaseCommitmentTable to label_LongTermPurchaseCommitmentTable" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:label="LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:title="LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xml:lang="en-US" id="label_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis">Category of Item Purchased [Axis]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:to="label_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:title="label: LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis to label_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:label="LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:title="LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" />
    <link:label xlink:type="resource" xlink:label="label_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xml:lang="en-US" id="label_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain">Long-term Purchase Commitment, Category of Item Purchased [Domain]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:to="label_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:title="label: LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain to label_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:label="NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:title="NumberOfPhaseIAndPhaseIIClinicalTrials" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NumberOfPhaseIAndPhaseIIClinicalTrials" xml:lang="en-US" id="label_NumberOfPhaseIAndPhaseIIClinicalTrials">Number of Phase I and Phase II Clinical Trials</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:to="label_NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:title="label: NumberOfPhaseIAndPhaseIIClinicalTrials to label_NumberOfPhaseIAndPhaseIIClinicalTrials" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfPhaseIAndPhaseIIClinicalTrials_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_NumberOfPhaseIAndPhaseIIClinicalTrials" xml:lang="en-US" id="label_NumberOfPhaseIAndPhaseIIClinicalTrials_2">Number of Phase I and Phase II clinical trials</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:to="label_NumberOfPhaseIAndPhaseIIClinicalTrials_2" xlink:title="label: NumberOfPhaseIAndPhaseIIClinicalTrials to label_NumberOfPhaseIAndPhaseIIClinicalTrials" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfPhaseIAndPhaseIIClinicalTrials_3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:title="label_NumberOfPhaseIAndPhaseIIClinicalTrials" xml:lang="en-US" id="label_NumberOfPhaseIAndPhaseIIClinicalTrials_3">Represents the number of Phase I and Phase II clinical trials for the treatment of various cancers in which the entity is participating.</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfPhaseIAndPhaseIIClinicalTrials" xlink:to="label_NumberOfPhaseIAndPhaseIIClinicalTrials_3" xlink:title="label: NumberOfPhaseIAndPhaseIIClinicalTrials to label_NumberOfPhaseIAndPhaseIIClinicalTrials" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="InterestPayableCurrentAndNoncurrent" xlink:title="InterestPayableCurrentAndNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_InterestPayableCurrentAndNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:title="label_InterestPayableCurrentAndNoncurrent" xml:lang="en-US" id="label_InterestPayableCurrentAndNoncurrent">Accrued and unpaid interest payable on cancellation of debt</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPayableCurrentAndNoncurrent" xlink:to="label_InterestPayableCurrentAndNoncurrent" xlink:title="label: InterestPayableCurrentAndNoncurrent to label_InterestPayableCurrentAndNoncurrent" />
    <link:label xlink:type="resource" xlink:label="label_InterestPayableCurrentAndNoncurrent_2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_InterestPayableCurrentAndNoncurrent" xml:lang="en-US" id="label_InterestPayableCurrentAndNoncurrent_2">Interest Payable</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InterestPayableCurrentAndNoncurrent" xlink:to="label_InterestPayableCurrentAndNoncurrent_2" xlink:title="label: InterestPayableCurrentAndNoncurrent to label_InterestPayableCurrentAndNoncurrent" />
    <link:loc xlink:type="locator" xlink:href="bpax-20120630.xsd#bpax_NumberOfNewLibiGelPhaseIIIEfficacyTrials" xlink:label="NumberOfNewLibiGelPhaseIIIEfficacyTrials" xlink:title="NumberOfNewLibiGelPhaseIIIEfficacyTrials" />
    <link:label xlink:type="resource" xlink:label="label_NumberOfNewLibiGelPhaseIIIEfficacyTrials" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_NumberOfNewLibiGelPhaseIIIEfficacyTrials" xml:lang="en-US" id="label_NumberOfNewLibiGelPhaseIIIEfficacyTrials">Number of New LibiGel Phase III Efficacy Trials</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NumberOfNewLibiGelPhaseIIIEfficacyTrials" xlink:to="label_NumberOfNewLibiGelPhaseIIIEfficacyTrials" xlink:title="label: NumberOfNewLibiGelPhaseIIIEfficacyTrials to label_NumberOfNewLibiGelPhaseIIIEfficacyTrials" />
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