Operative cholangiograms.
D002758:Cholangiography / Q000295:instrumentation; D002763:Cholecystectomy; D002764:Cholecystitis / Q000000981:diagnostic imaging; D003135:Common Bile Duct / Q000601:surgery*; D042882:Gallstones / Q000000981:diagnostic imaging; D006801:Humans; D008722:Methods