title: Should endoscopic balloon dilation be used for the extraction of bile duct stones?
authors.affiliation: Department of Surgery, Kyorin University School of Medicine, Tokyo, Japan. sgym@kyorin-u.ac.jp
authors.forename: Masanori
authors.initials: M
authors.lastname: Sugiyama
authors.forename: Nobutsugu
authors.initials: N
authors.lastname: Abe
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Atomi