Histological analysis of the hDBM (a, e), hDBM/DBM (b, f), hDBM/DBM/pTCP (c, g), and hDBM/DBM/gTCP (d, h) bone grafts in the femur defect model at 1 month and 2 months after implantation. (dot box, graft implanted site; black arrows, collapsed tissue; yellow arrows, gTCP; scale bar = 1 mm). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)