Surgery of the bile ducts.
D001652:Bile Ducts / Q000293:injuries*; D002763:Cholecystectomy / Q000009:adverse effects*; D002764:Cholecystitis / Q000601:surgery; D004381:Duodenal Ulcer / Q000601:surgery; D005743:Gastrectomy / Q000009:adverse effects; D006801:Humans