title: Bye-bye, barium.
authors.forename: L F
authors.initials: LF
authors.lastname: Rogers
mesh_terms: D001466:Barium Sulfate; D003287:Contrast Media; D006801:Humans; D011859:Radiography / Q000639:trends*; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate