title: Endoscopic access to the papilla of Vater for endoscopic retrograde cholangiopancreatography in patients with Billroth II or Roux-en-Y gastrojejunoanastomosis.
authors.forename: C
authors.initials: C
authors.lastname: Rollhauser
authors.forename: F H
authors.initials: FH
authors.lastname: Al-Kawas
mesh_terms: D014670:Ampulla of Vater; D000713:Anastomosis, Roux-en-Y; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D005743:Gastrectomy; D005763:Gastroenterostomy; D006801:Humans; D007583:Jejunum / Q000601:surgery*