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Osteocalcin release rate (A) and total osteocalcin protein released (B) into the medium by human dermal fibroblasts cultured in ITS, ITS+vitD, ITS+vitD+Noggin, ITS+vitD+BMP4 Ab, and ITS+vitD+BMP6 Ab media. *: p<0.05 compared to all other groups, b: p<0.05 compared to all but ITS+vitD+BMP4 Ab, d: p<0.05 compared to all but ITS+vitD+Noggin, e: p<0.05 compared to ITS+vitD, f: p<0.05 compared to ITS and ITS+vitD+BMP6Ab.
