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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Net Income (Loss) Attributable to Parent $ (5,007,085) $ (2,771,591)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 4,819 4,741
Gain on forgiveness of PPP loan 0 (158,524)
Stock-based compensation 91,668 106,738
Stock compensation to nonemployees 0 41,004
Increase or decrease in:    
Accounts receivable, net (76,233) 374,738
Inventory, net 9,994 6,381
Prepaid clinical expenses (309,403) (1,426,434)
Prepaid insurance and services (87,503) (189,368)
Other 1,573 (1,537)
Accounts payable and accrued expenses 1,001,931 (816,397)
Total adjustments 636,846 (2,058,658)
NET CASH USED IN OPERATING ACTIVITIES (4,370,239) (4,830,249)
CASH FLOWS FROM INVESTING ACTIVITIES    
Purchases of equipment 0 (4,600)
Collections from mortgage note receivable 0 13,916
NET CASH PROVIDED BY INVESTING ACTIVITIES 0 9,316
CASH FLOWS FROM FINANCING ACTIVITIES    
Net from the sale of warrants 2,407,849 0
Net proceeds from sale of stock 1,334,034
Exercise of warrants 114
Payments on PPP loan 0 (8,159)
NET CASH PROVIDED BY FINANCING ACTIVITIES 3,741,997 6,778
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (628,242) (4,814,155)
CASH AND CASH EQUIVALENTS, beginning of period 1,543,418 16,612,711
CASH AND CASH EQUIVALENTS, end of period 915,176 11,798,556
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION    
Cash paid for interest 1,730 0
Paycheck Protection Program CARES Act [Member]    
Adjustments to reconcile net loss to net cash used in operating activities:    
Gain on forgiveness of PPP loan 0 (158,524)
CASH FLOWS FROM FINANCING ACTIVITIES    
Refund of PPP loan payments $ 0 $ 14,937