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Osteocalcin expression by hFOB cells after 5 days of culture on TCP, PHBV, PHBV/CTS, PHBV/CTS/HA4, and PHBV/CTS/HA8,; pictures taken with 20× magnification; scale bar on images represents 100 μm. Reproduced with permission from ref (173). Copyright 2015 Elsevier.
