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)
 3 Months Ended
Mar. 31, 2018
Accounting Policies [Abstract]  
Antidilutive shares
    March 31,
2018 		    March 31,
2017 		 
Options     37,301,300       29,974,256  
Warrants     17,590,812       9,064,317  
Common stock issuable upon conversion of notes payable     7,047,333       4,527,233  
Total     61,939,445       43,565,806