title: Oral barium tracer: an adjunct for barium enema preparation.
mesh_terms: D000284:Administration, Oral; D001466:Barium Sulfate; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D011859:Radiography
chemical_list: D001466:Barium Sulfate