Objectives of the preplacement x-ray investigation of the low-back area.
D006801:Humans; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D016272:Occupational Health; D010808:Physical Examination; D011859:Radiography; D014965:X-Rays
INDUSTRIAL HYGIENE; LUMBOSACRAL REGION/radiography; PHYSICAL EXAMINATION