Osteoporosis.
D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008593:Menopause; D008875:Middle Aged; D010024:Osteoporosis / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D012306:Risk; D012737:Sex Factors