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, 2015
Accounting Policies [Abstract]  
Antidilutive shares
    September 30, 2015     September 30, 2014  
Options     21,706,512       20,757,030  
Warrants     3,677,704       5,421,050  
Common stock issuable upon conversion of notes payable     399,667        
Total     25,783,883       26,178,080