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Note 4 - Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Other Current Liabilities [Table Text Block]

		March 31, 2021				December 31, 2020
Accrued payroll and payroll related expenses		$	510,002			$	653,899
Accrued professional fees			77,258				31,809
Accrued clinical studies expenses			406,439				1,055,398
Other accrued expenses			55,205				35,364
Total		$	1,048,904			$	1,776,470

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