[Observations on geriatric changes in the spine].
D000367:Age Factors; D000368:Aged; D000375:Aging; D001416:Back Pain / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D010024:Osteoporosis / Q000453:epidemiology; D011187:Posture; D011859:Radiography; D012737:Sex Factors; D013131:Spine / Q000000981:diagnostic imaging; D013166:Spondylitis / Q000453:epidemiology