title: A safer balloon catheter assembly for colon examinations.
mesh_terms: D001466:Barium Sulfate; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D004733:Enema; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology / Q000517:prevention & control*; D007420:Intestine, Large / Q000000981:diagnostic imaging*; D008722:Methods; D011859:Radiography; D012007:Rectum / Q000293:injuries*; D013679:Technology, Radiologic / Q000295:instrumentation*
chemical_list: D001466:Barium Sulfate