Table 1.

Committee composition

Production committee

Susumu Tazuma (Chair), Hiroyuki Isayama, Norihiro Kokudo, Atsushi Tanaka

Toshio Tsuyuguchi, Takahiro Nakazawa, Kenji Notohara

Production Assistant: Nobuhisa Akamatsu, Masahiro Serikawa, Itaru Naito

Suguru Mizuno

Panel of Delphi method experts

Atsushi Tanaka(Chair), Hiroyuki Isayama, Norihiro Kokudo, Susumu Tazuma

Toshio Tsuyuguchi, Takahiro Nakazawa, Kenji Notohara

Evaluation Committee (Scientific Committee of the Japan Biliary Association)

Yoshiki Hirooka (Chair), Toshifumi Wakai, Takao Itoi, Tomoki Ebata, Shinji Okaniwa,

Terumi Kamisawa, Hiroki Kawashima, Atsushi Kanno, Keiichi Kubota, Masami Tabata, Michiaki Unno