title: The barium enema. Is it obsolete?
mesh_terms: D001466:Barium Sulfate; D003108:Colonic Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003951:Diagnostic Errors; D019723:Endoscopes; D004733:Enema; D005069:Evaluation Studies as Topic; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate