| http://www.w3.org/ns/prov#value | - The method for preparing the implant material of U.S. Pat. No. 4,563,489 generally comprises (1) dissolving the physiologically acceptable biodegradable polymer in a solvent such as ethanol, acetone or chloroform, (2) admixing the polymer solution with BMP to form a dispersion of BMP in the polymer solution and (3) precipitating the composite by adding a second solvent which causes precipitation o
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