title: Ultrastructural aspects of disintegrating collagen fibrils in osteoporotic bones.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000473:pathology*; D002136:Calcium, Dietary; D003094:Collagen; D005260:Female; D008684:Metatarsus / Q000473:pathology; D008854:Microscopy, Electron; D010024:Osteoporosis / Q000209:etiology / Q000473:pathology*; D051381:Rats
chemical_list: D002136:Calcium, Dietary; D003094:Collagen