title: The nonopacified gallbladder on oral cholecystography.
mesh_terms: D000284:Administration, Oral; D002758:Cholangiography; D002764:Cholecystitis / Q000000981:diagnostic imaging; D002765:Cholecystography; D002769:Cholelithiasis / Q000000981:diagnostic imaging; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D007480:Iopanoic Acid / Q000008:administration & dosage*; D012189:Retrospective Studies
chemical_list: D007480:Iopanoic Acid