Quarterly report pursuant to Section 13 or 15(d)

2. Summary of Significant Accounting Policies (Tables)

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2. Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]  
Antidilutive shares
    September 30,
2018
    September 30,
2017
 
Options     35,351,300       35,575,677  
Warrants     7,288,855       17,420,770  
Common stock issuable upon conversion of notes payable     7,204,552       4,957,333  
Total     49,844,707       57,953,780