Simple method for removal of gallstones after duodenoscopic sphincterotomy.
D014670:Ampulla of Vater / Q000601:surgery*; D002404:Catheterization; D002769:Cholelithiasis / Q000601:surgery*; D004386:Duodenum; D019723:Endoscopes; D004724:Endoscopy / Q000379:methods*; D006801:Humans