Pre-employment roentgenograms of the lower dorsal and lumbosacral spine in young men.
D004651:Employment; D006801:Humans; D008161:Lumbosacral Region / Q000000981:diagnostic imaging*; D008297:Male; D008910:Minnesota; D016272:Occupational Health; D011859:Radiography; D013116:Spinal Cord / Q000000981:diagnostic imaging*
INDUSTRIAL HYGIENE; LUMBOSACRAL REGION/radiography; SPINAL CORD/radiography