title: The value of postevacuation radiographs of the bowel to distinguish free perforation from a confined extraluminal barium collection.
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate / Q000009:adverse effects; D003106:Colon / Q000000981:diagnostic imaging / Q000293:injuries*; D003937:Diagnosis, Differential; D004733:Enema / Q000009:adverse effects*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate