title: Esophageal perforation during double-contrast esophagram.
mesh_terms: D000368:Aged; D002245:Carbon Dioxide / Q000009:adverse effects; D004939:Esophageal Perforation / Q000209:etiology*; D004947:Esophagus / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011859:Radiography / Q000009:adverse effects*
chemical_list: D002245:Carbon Dioxide