title: [Reflux of barium into the biliary system during upper G.I. series].
mesh_terms: D000328:Adult; D014670:Ampulla of Vater; D001466:Barium Sulfate; D001658:Biliary Fistula / Q000000981:diagnostic imaging*; D003135:Common Bile Duct; D004064:Digestive System / Q000000981:diagnostic imaging; D004378:Duodenal Diseases / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007412:Intestinal Fistula / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate