title: "Short" double-balloon or single-balloon enteroscope for ERCP in patients with billroth II gastrectomy or Roux-en-Y anastomosis.
authors.forename: Mitsunobu
authors.initials: M
authors.lastname: Matsushita
authors.forename: Masaaki
authors.initials: M
authors.lastname: Shimatani
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Ikeura
authors.forename: Makoto
authors.initials: M
authors.lastname: Takaoka
authors.forename: Kazuichi
authors.initials: K
authors.lastname: Okazaki