title: Pre-employment low-back x-ray survey; a review of 1500 cases.
authors.forename: A E
authors.initials: AE
authors.lastname: COLCHER
authors.forename: A M W
authors.initials: AM
authors.lastname: HURSH
mesh_terms: D001415:Back; D004194:Disease; D004651:Employment; D006801:Humans; D016272:Occupational Health; D013122:Spinal Diseases; D013131:Spine; D014965:X-Rays