Low back disability in industry: updated position.
D000368:Aged; D001416:Back Pain / Q000209:etiology*; D002357:Cartilage Diseases / Q000150:complications; D006801:Humans; D007403:Intervertebral Disc; D008297:Male; D008875:Middle Aged; D009787:Occupational Medicine; D010003:Osteoarthritis / Q000150:complications; D005082:Physical Exertion