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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2014
Summary of Significant Accounting Policies  
Schedule of antidilutive securities excluded from computations of diluted net loss per common share

 

 

 

As of June 30,

 

 

 

2014

 

2013

 

Warrants to purchase common stock

 

88,545 

 

88,545 

 

Options to purchase common stock

 

2,651,522 

 

1,720,637 

 

 

 

2,740,067 

 

1,809,182