Fig. 3From: Rapid bone regeneration by Escherichia coli-derived recombinant human bone morphogenetic protein-2 loaded on a hydroxyapatite carrier in the rabbit calvarial defect modelRepresentative photomicrographs obtained at 8 weeks postoperation. a Control, b HAP only, c ErhBMP-2/HAP (hematoxylin and eosin, ×40). Arrowheads = defect marginBack to article page