title: A precut fistulotomy technique for difficult biliary cannulation.
authors.forename: Hironari
authors.initials: H
authors.lastname: Kato
authors.forename: Koichiro
authors.initials: K
authors.lastname: Tsutsumi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Okada
mesh_terms: D001658:Biliary Fistula / Q000601:surgery*; D002404:Catheterization / Q000379:methods*; D006801:Humans; D016717:Sphincterotomy, Endoscopic / Q000379:methods*