Industrial back problems. A control program.
D001415:Back / Q000000981:diagnostic imaging*; D019567:Back Injuries; D001416:Back Pain / Q000145:classification / Q000209:etiology* / Q000628:therapy; D004185:Disability Evaluation / Q000592:standards*; D006801:Humans; D008297:Male; D008499:Medical Records; D009787:Occupational Medicine; D011859:Radiography; D013131:Spine / Q000002:abnormalities; D013168:Spondylolisthesis / Q000000981:diagnostic imaging; D014942:Workers' Compensation