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Prepaid Expenses and Other Current Assets (Tables)
3 Months Ended
Mar. 31, 2018
Prepaid Expenses And Other Current Assets  
Schedule of Prepaid Expenses and Other Current Assets

    March 31, 2018     December 31, 2017  
             
Prepaid inventory   $ 8,591     $ 27,715  
Prepaid insurance     17,950       7,453  
Prepaid other current assets     57,097       216,419  
    $ 83,638     $ 251,587