title: Organic matrix of healing fracture callus: perifracture vs fracture callus.
mesh_terms: D000818:Animals; D002146:Bony Callus / Q000502:physiology*; D002356:Cartilage / Q000502:physiology; D003094:Collagen / Q000378:metabolism; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D013977:Tibia; D014945:Wound Healing / Q000502:physiology*
chemical_list: D003094:Collagen