Fig. 6From: Angiogenin-loaded fibrin/bone powder composite scaffold for vascularized bone regenerationMicroscopic evaluation of calvarial sections stained with hematoxylin-eosin after 8 weeks. Remaining bone particle material (asterisk) was observed in all scaffold-implanted groups. Newly generated mineralized bone (black arrow) was observed near the margin of the defect site (arrowhead) in the calvarial bone. HB represents the host bone. Scale bar = 500 μmBack to article page