About the Authors

Tomoko Tsumura

Roles Writing – original draft

Affiliation Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan

Shinji Kuroda

Roles Conceptualization, Formal analysis, Writing – review & editing

shinkuro@okayama-u.ac.jp

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan

Masahiko Nishizaki

Roles Supervision

Affiliation Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan

Satoru Kikuchi

Roles Formal analysis

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Minimally Invasive Therapy Center, Okayama University Hospital, Okayama, Japan

Yoshihiko Kakiuchi

Roles Formal analysis

Affiliation Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan

Nobuo Takata

Roles Formal analysis

Affiliation Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan

Atene Ito

Roles Data curation

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Department of Surgery, Tsuyama Chuo Hospital, Tsuyama, Japan

Megumi Watanabe

Roles Data curation

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Department of Surgery, Iwakuni Clinical Center, Iwakuni, Japan

Kazuya Kuwada

Roles Data curation

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Department of Gastroenterological Surgery, Japanese Red Cross Okayama Hospital, Okayama, Japan

Shunsuke Kagawa

Roles Supervision

Affiliations Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, Minimally Invasive Therapy Center, Okayama University Hospital, Okayama, Japan

Toshiyoshi Fujiwara

Roles Supervision

Affiliation Department of Gastroenterological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan

Competing Interests

The authors have declared that no competing interests exist.