title: Persistent colonic spasm.
authors.forename: F W
authors.initials: FW
authors.lastname: Poon
mesh_terms: D001466:Barium Sulfate; D002086:Butylscopolammonium Bromide / Q000008:administration & dosage; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D013035:Spasm / Q000150:complications*
chemical_list: D001466:Barium Sulfate; D002086:Butylscopolammonium Bromide