title: Colonoscopy in the irritable bowel syndrome.
mesh_terms: D001466:Barium Sulfate; D003109:Colonic Diseases, Functional / Q000000981:diagnostic imaging*; D004724:Endoscopy; D006801:Humans; D011859:Radiography; D012812:Sigmoidoscopy
chemical_list: D001466:Barium Sulfate