The nature of osteoporosis.
D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D005269:Femur; D006801:Humans; D008593:Menopause; D008663:Metacarpus; D008875:Middle Aged; D010024:Osteoporosis / Q000453:epidemiology / Q000503:physiopathology*