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Concentrations
3 Months Ended
Mar. 31, 2015
Notes to Financial Statements  
8. Concentrations

During the three months ended March 31, 2015, two vendors represented 74% and 10% of total inventory purchases. During the three months ended March 31, 2014, two vendors represented 57% and 16% of total inventory purchases, respectively.

 

One vendor represented 38% and 36% of the accounts payable balance as of March 31, 2015 and December 31, 2014, respectively.