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Fractional release of [P2/heparin/FGF-2/heparin] films of varying numbers of tetralayers. Greater than or equal to about 95% release is seen at all numbers of tetralayers, suggesting that all FGF-2 incorporated is released.
| # Tetralayers | Percent released |
|---|---|
| 50 | 98.8 |
| 40 | 100.0 |
| 30 | 94.8 |
| 17 | 95.7 |
| 10 | 99.5 |
