Electron microscopic and histologic studies on fracture repair in old and young rats.
D000375:Aging; D000818:Animals; D001861:Bone Regeneration; D050723:Fractures, Bone / Q000473:pathology*; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D010507:Periodicity; D051381:Rats; D013978:Tibial Fractures / Q000473:pathology