title: Radiographic examination of the lumbar spine.
authors.forename: R W
authors.initials: RW
authors.lastname: Porter
authors.forename: J A
authors.initials: JA
authors.lastname: Shepperd
mesh_terms: D001416:Back Pain / Q000000981:diagnostic imaging*; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D011859:Radiography