Fig. 15

Vascularization of Pelnac after implantation under the dorsal skin of rats at different time points (square brackets). Vascularization after implantation under the dorsal skin of rats on postoperative days 7, 14, and 21 (7D, 14D, and 21D, respectively) visualized by hematoxylin-eosin (HE) and Masson’s trichrome staining and cluster of differentiation 31 (CD31) immunohistochemistry (× 200). Scale bars, 250 μm