Metabolic bone disease in the elderly.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010018:Osteomalacia / Q000209:etiology; D010024:Osteoporosis / Q000209:etiology; D014808:Vitamin D Deficiency / Q000150:complications