title: [Aging and calcium metabolism].
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001842:Bone and Bones / Q000378:metabolism; D002118:Calcium / Q000378:metabolism*; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006801:Humans; D007006:Hypogonadism / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000378:metabolism
chemical_list: D004967:Estrogens; D002118:Calcium