Radiologic considerations in preplacement examinations of the lumbar spine; summary of four thousand consecutive cases.
D006801:Humans; D008159:Lumbar Vertebrae; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D016272:Occupational Health; D010808:Physical Examination; D011859:Radiography; D011871:Radiology
INDUSTRIAL HYGIENE; LUMBOSACRAL REGION/radiography; PHYSICAL EXAMINATION