Osteoporosis.
D000367:Age Factors; D002118:Calcium / Q000627:therapeutic use; D004967:Estrogens / Q000627:therapeutic use; D005260:Female; D050723:Fractures, Bone / Q000209:etiology*; D006801:Humans; D008297:Male; D010024:Osteoporosis / Q000150:complications* / Q000188:drug therapy; D012737:Sex Factors
D004967:Estrogens; D002118:Calcium