title: Single-versus double-contrast barium studies in elderly patients.
authors.forename: S
authors.initials: S
authors.lastname: Millward
mesh_terms: D000368:Aged; D001466:Barium Sulfate; D003111:Colonic Polyps / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D011187:Posture; D011859:Radiography
chemical_list: D001466:Barium Sulfate