Fig. 7From: Preservation of allograft bone using a glycerol solution: a compilation of original preclinical researcha Glycerol-preserved (GBP) cortical bone disc in calvaric defect model at 6 weeks. The scale is 500 μm. b Frozen bone disc in calvaric defect model at 6 weeks. The scale is 500 μm. For both images, black arrows indicate connective tissue infiltration and blue arrows mark new bone development initiating the bone bridge formationBack to article page