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Protein release profiles. (A) BMP2 cumulative release profile. After 7 days, 0.0311±0.0053 μg BMP2 was released into phosphate-buffered saline at 37°C. (B) BMP2 release. A small burst release occurred in the first 2 days, followed by sustained release. (C) EPO cumulative release profile. After 7 days, 119.2±29.4 IU of the 139.6±28.6 IU that was bound was released. (D) EPO released over 7 days with a small burst release in the first 2 days. (n=3/group).
