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Note 4 - Other Accrued Expenses and Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Other Current Liabilities [Table Text Block]

		March 31, 2018				December 31, 2017
Accrued interest payable			38,771				37,415
Accrued Series A dividends			—				1,062,314
Accrued payroll and payroll related expenses			184,689				312,221
Accrued professional fees			85,235				122,711
Accrued clinical studies expenses			55,210				63,350
Other accrued expenses			89,808				30,840
Total			453,713				1,628,851

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