0020 - Statement - Condensed Statements of Operations link:presentationLink link:calculationLink link:definitionLink 0030 - Statement - Condensed Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 0010 - Statement - Condensed Balance Sheets link:presentationLink link:calculationLink link:definitionLink 0015 - Statement - Condensed Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1010 - Disclosure - DESCRIPTION OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 1020 - Disclosure - BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 1030 - Disclosure - RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS link:presentationLink link:calculationLink link:definitionLink 1040 - Disclosure - LIQUIDITY AND CAPITAL RESOURCES link:presentationLink link:calculationLink link:definitionLink 1050 - Disclosure - BASIC AND DILUTED NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 8000 - Disclosure - LICENSE AGREEMENTS link:presentationLink link:calculationLink link:definitionLink 1060 - Disclosure - INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 1070 - Disclosure - CONVERTIBLE SENIOR NOTES link:presentationLink link:calculationLink link:definitionLink 1080 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 1090 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 8010 - Disclosure - SUBSEQUENT EVENT link:presentationLink link:calculationLink link:definitionLink 9999 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 1100 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink