title: Letter: Cholecystokinin cholangiography.
mesh_terms: D001660:Biliary Tract Diseases / Q000175:diagnosis; D002758:Cholangiography; D002766:Cholecystokinin / Q000008:administration & dosage; D005189:False Positive Reactions; D006801:Humans; D007275:Injections, Intravenous; D010146:Pain / Q000175:diagnosis
chemical_list: D002766:Cholecystokinin