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Investment income$18,483 Collaboration and license$8,847,550 Total other income(expense), net$16,481 Income (loss) fromoperations$4,661,053 Interest expense$2,002 Total operatingexpenses$4,186,497 Net income (loss)$4,677,534 Selling, general andadministrative$1,660,731 Research and development$2,525,766
ptn: the income statement