title: [What is osteoporosis? Its significance from epidemiological point of view].
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hagino
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Katagiri
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005598:Fractures, Spontaneous / Q000453:epidemiology*; D006620:Hip Fractures / Q000453:epidemiology; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D010024:Osteoporosis / Q000453:epidemiology*; D015663:Osteoporosis, Postmenopausal / Q000453:epidemiology; D011379:Prognosis