title: Endoscopic papillotomy on the guide of a transhepatic anterograde biliary drainage.
mesh_terms: D014670:Ampulla of Vater / Q000601:surgery*; D004322:Drainage / Q000379:methods; D004724:Endoscopy / Q000379:methods*; D006801:Humans; D009803:Sphincter of Oddi / Q000601:surgery*