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Note 5 - Prepaid Expenses - Schedule of Prepaid Expenses (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Prepaid research and development $ 1,176,042 $ 507,733
Prepaid insurance 63,703 222,476
Professional services 199,002 108,850
Financial exchange fees 10,750
Retainer and security deposits 14,218 14,218
Prepaid rent 8,976 4,275
Other 11,560 4,792
Total prepaid expenses $ 1,484,251 $ 862,344