title: Significant roentgen findings in routine pre-employment examination of the lumbosacral spine; a preliminary report.
authors.forename: M L
authors.initials: ML
authors.lastname: ALLEN
authors.forename: M C
authors.initials: MC
authors.lastname: LINDEM
mesh_terms: D004651:Employment; D006801:Humans; D008161:Lumbosacral Region; D016272:Occupational Health; D013131:Spine