title: Vertical cassette alignment in scoliosis filming by using the gastric gas bubble as a level.
authors.forename: A M
authors.initials: AM
authors.lastname: Singer
authors.forename: J F
authors.initials: JF
authors.lastname: O'Connor
mesh_terms: D006801:Humans; D011859:Radiography; D012600:Scoliosis / Q000000981:diagnostic imaging*; D013679:Technology, Radiologic / Q000379:methods*