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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Operating activities    
Net loss $ (2,617,760) $ (2,023,899)
Adjustments to reconcile net loss to net cash used in operating activities:    
Amortization 9,903 9,104
Stock-based services expense 373,947 11,849
Forgiveness of share subscription agreement for founders' shares 9,051
Non-cash interest on short-term and convertible promissory notes 120,411 43,856
Non-cash discount amortization on convertible promissory notes 377,026 482,505
Note issuance costs attributed to warrant liability 38,119
Revaluation of premium conversion derivatives (351,616) 74,806
Revaluation of warrant liability 16,025 (19,253)
Loss on notes extinguishment 186,220
Change in assets and liabilities:    
Prepaid expenses 6,527 46,677
Accounts payable and accrued expenses 584,458 414,019
Net cash used in operating activities (1,294,859) (913,166)
Investing activities    
Purchase of intangible assets (55,000)
Net cash used in investing activities (55,000)
Financing activities    
Proceeds from issuance of convertible promissory notes 432,849 484,201
Proceeds from issuance of warrants associated with short-term and convertible promissory notes 442,151 440,919
Proceeds (repayment) from short-term unsecured loan 283,000 (50,000)
Issuance costs related to convertible promissory notes (33,039)
Advances relating to long-term financing 188,000
Issuance costs related to warrants (29,570)
Net cash provided by financing activities 1,346,000 812,511
Net decrease in cash (3,859) (100,655)
Cash at beginning of period 26,467 522,217
Cash at end of period 22,608 421,562
Supplemental non-cash financing and investing transactions:    
Bifurcation of premium conversion derivative related to convertible promissory notes 168,383 213,961
Accrued issuance costs attributed to convertible promissory notes 2,850 39,781
Accrued issuance costs attributed to warrant liability 38,119
Common stock issued in connection with purchase of intangible assets $ 23,115