title: Barium enema struggles against high-tech rivals.
authors.forename: J C
authors.initials: JC
authors.lastname: Hayes
mesh_terms: D001466:Barium Sulfate; D015179:Colorectal Neoplasms / Q000000981:diagnostic imaging*; D004733:Enema / Q000009:adverse effects / Q000191:economics; D006801:Humans; D006278:Medicare; D011859:Radiography; D012955:Societies, Medical; D014481:United States