Endoscopic treatment of biliary-tract diseases.
D000328:Adult; D000367:Age Factors; D000368:Aged; D014670:Ampulla of Vater / Q000601:surgery*; D004724:Endoscopy; D005069:Evaluation Studies as Topic; D042882:Gallstones / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality