Annual report pursuant to Section 13 and 15(d)

8. STOCKHOLDERS' EQUITY (Details 3)

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8. STOCKHOLDERS' EQUITY (Details 3) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Total stock-based compensation expense $ 2,650,777 $ 2,223,288
Research and Development Expense    
Total stock-based compensation expense 360,569 292,739
Plasma centers [Member]    
Total stock-based compensation expense 51,340 34,797
Selling, General and Administrative Expense    
Total stock-based compensation expense 2,047,025 1,739,037
Cost of goods sold    
Total stock-based compensation expense $ 191,843 $ 156,718