**Author details**

Yoshinobu Sato1,2\*, Yoshiaki Hara1 , Naruhiko Sawada1 , Shoji Shimada1 , Kenta Nakahara1 , Daisuke Takayanagi1 , Fumio Ishida1 , Shin‐EI Kudo1 and Junichi Tanaka<sup>2</sup>

\*Address all correspondence to: kanishok@med.showa‐u.ac.jp

1 Digestive Disease Center, Showa University, Yokohama Northern Hospital, Yokohama, Japan

2 Department of General and Digestive Surgery, Showa University, Fujigaoka Hospital, Fujigaoka, Japan
