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Note 3 - Balance Sheet Components - Prepaid Expenses (Details) - USD ($)
Dec. 31, 2022
Dec. 31, 2021
Prepaid clinical trial costs (current portion) $ 1,171,077 $ 0
Prepaid insurance premiums 107,876 123,248
Prepaid rent 13,045 13,045
Other prepaid expenses 34,000 19,947
Total prepaid expenses $ 1,325,998 $ 156,240