title: Cholecystography or ultrasound?
mesh_terms: D002765:Cholecystography; D005705:Gallbladder Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D042882:Gallstones / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D012189:Retrospective Studies; D014463:Ultrasonography