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Note 4 - Prepaid Expenses - Schedule of Prepaid Expenses (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Prepaid insurance $ 46,618 $ 125,056
Retainer and security deposits 16,718 14,218
Professional services 93,557 97,788
Prepaid research and development 104,299
Financial exchange fees 13,750
Other 15,389 13,882
$ 290,331 $ 250,944