title: Osteoporosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001842:Bone and Bones / Q000378:metabolism; D002118:Calcium / Q000502:physiology; D002136:Calcium, Dietary; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000209:etiology* / Q000378:metabolism
chemical_list: D002136:Calcium, Dietary; D002118:Calcium