title: [Aging of the bone--changes in collagen in the senile osteoporotic bone].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D001842:Bone and Bones / Q000032:analysis*; D003094:Collagen / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000378:metabolism*
chemical_list: D003094:Collagen