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Enhanced osteogenesis in calvarial bone defects after SF/HAP/GPM scaffolds implantation. (A) Osteocalcin (OCN) immunohistochemical staining of the calvarial bones implanted with SF, SF/HAP and SF/HAP/ GPM scaffolds for 4 and 12 weeks. NB, new bone; the arrowheads point the OCN positive staining. (B) TRAP staining of the calvarial bones implanted with SF, SF/HAP and SF/HAP/ GPM scaffolds for 4 and 12 weeks. NB, new bone; the arrowheads point the TRAP-stained cells.
