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)
6 Months Ended
Jun. 30, 2017
Accounting Policies [Abstract]  
Antidilutive shares
    June 30,
2017
    June 30,
2016
 
Options     35,581,398       23,724,256  
Warrants     35,313,541       9,342,892  
Common stock issuable upon conversion of notes payable     9,968,933       2,401,667  
Total     66,789,744       35,468,815