Pre-employment x-ray survey of the lumbosacral spine in bus drivers.
D003625:Data Collection; D004651:Employment; D006801:Humans; D008161:Lumbosacral Region; D016272:Occupational Health; D011859:Radiography; D013131:Spine / Q000000981:diagnostic imaging*; D014965:X-Rays
INDUSTRIAL HYGIENE; SPINE/radiography