Osteoporosis: the clinical problem.
D000368:Aged; D000818:Animals; D001842:Bone and Bones / Q000378:metabolism; D004967:Estrogens / Q000172:deficiency; D005260:Female; D005598:Fractures, Spontaneous / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D008903:Minerals / Q000378:metabolism; D010024:Osteoporosis / Q000209:etiology* / Q000628:therapy; D012306:Risk
D004967:Estrogens; D008903:Minerals