title: Barium impaction and colonic perforation after barium meal.
mesh_terms: D000368:Aged; D001466:Barium Sulfate / Q000009:adverse effects*; D003108:Colonic Diseases / Q000209:etiology*; D003110:Colonic Neoplasms / Q000150:complications; D004064:Digestive System / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications / Q000209:etiology*; D007416:Intestinal Perforation / Q000209:etiology*; D011859:Radiography
chemical_list: D001466:Barium Sulfate