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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Revenues: |  |  |  |
License and collaborative fees | $ 1,574 | $ 1,127 | $ 2,578 | $ 4,665
Contract and other | 4,738 | 6,124 | 20,339 | 21,725
Total revenues | 6,312 | 7,251 | 22,917 | 26,390
Operating expenses: |  |  |  |
Research and development | 18,198 | 18,409 | 51,905 | 52,702
Selling, general and administrative | 5,225 | 4,672 | 13,429 | 12,918
Restructuring | 112 | 323 | 209 | 4,776
Total operating expenses | 23,535 | 23,404 | 65,543 | 70,396
Loss from operations | (17,223) | (16,153) | (42,626) | (44,006)
Other income (expense): |  |  |  |
Interest expense | (1,159) | (1,144) | (3,495) | (3,211)
Other income (expense) | (132) | (420) | 92 | (542)
Revaluation of contingent warrant liabilities | (11,125) | (9,208) | (25,745) | (25,746)
Net loss before taxes | (29,639) | (26,925) | (71,774) | (73,505)
Provision for income tax benefit | 15 | 74 | 15 | 74
Net loss | (29,624) | (26,851) | (71,759) | (73,431)
Basic and diluted net loss per common stock (in dollars per share) | $ (0.34) | $ (0.39) | $ (0.85) | $ (1.22)
Shares used in computing basic and diluted net loss per share of common stock (in shares) | 87,033 | 68,189 | 84,205 | 60,239
Other comprehensive loss: |  |  |  |
Net loss | (29,624) | (26,851) | (71,759) | (73,431)
Net unrealized gains on available-for-sale securities | 0 | 7 | 0 | 12
Comprehensive loss | $ (29,624) | $ (26,844) | $ (71,759) | $ (73,419)

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