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Radiological analysis after 3 weeks. (a) BCP powder containing 0.1 mg/mL rhBMP-2; (b) BCP block containing 0.1 mg/mL rhBMP-2; (c) collagen-added BCP containing 0.1 mg/mL rhBMP-2; (d), BCP powder containing 0.2 mg/mL rhBMP-2; (e), BCP block containing 0.2 mg/mL rhBMP-2; (f), collagen-added BCP containing 0.2 mg/mL rhBMP-2; BCP, biphasic ceramic phosphate scaffold; rhBMP-2, recombinant human bone morphogenetic protein 2.
