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Intangible Assets (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Intangible assets consisted solely of CFDA approved medical formulas as follows:    
Gross carrying amount $ 4,909,318 $ 5,188,547
Accumulated amortization (4,642,875) (4,789,691)
Net carrying amount $ 266,443 $ 398,856