title: Barium-meal perforation of peptic ulcer.
mesh_terms: D000328:Adult; D001466:Barium Sulfate; D004381:Duodenal Ulcer / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000209:etiology*; D011859:Radiography
chemical_list: D001466:Barium Sulfate