Densitometric studies on metacarpal bones of lumberjacks using chain saws.
D000367:Age Factors; D003720:Densitometry; D006801:Humans; D008297:Male; D050279:Metacarpal Bones / Q000473:pathology; D009784:Occupational Diseases; D010024:Osteoporosis / Q000175:diagnosis / Q000209:etiology*; D014732:Vibration / Q000009:adverse effects*