| Shares Underlying Warrants Outstanding | Shares Underlying Warrants Exercisable |
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| Range of Exercise Prices | Shares Underlying Warrants Outstanding | Weighted Average Remaining Contractual Life | Weighted Average Exercise Price | Shares Underlying Warrants Exercisable | Weighted Average Exercise Price | |||||||||||||||||
| $0.38 - $1.50 | 9,463,375 | 3.58 years | $ 0.94 | 9,463,375 | $ 0.94 | |||||||||||||||||