About the Authors

Akitoshi Nankaku

Roles Conceptualization, Data curation, Writing – original draft, Writing – review & editing

Affiliation Department of Gastrointestinal Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan

Masanori Tokunaga

Roles Data curation, Project administration, Writing – original draft, Writing – review & editing

tokunaga.srg1@tmd.ac.jp

Affiliation Department of Gastrointestinal Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan

Hiroki Yonezawa

Roles Data curation, Writing – original draft

Affiliation Department of Gastrointestinal Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan

Takahiro Kanno

Roles Methodology, Writing – original draft

Affiliation Riverfield Corporation, Tokyo, Japan

Kenji Kawashima

Roles Methodology, Resources, Supervision, Writing – review & editing

Affiliations Riverfield Corporation, Tokyo, Japan, Department of Information Physics and Computing, the University of Tokyo, Tokyo, Japan

Kenichi Hakamada

Roles Supervision, Writing – review & editing

Affiliation Department of Gastroenterological Surgery, Hirosaki University, Aomori, Japan

Satoshi Hirano

Roles Supervision, Writing – review & editing

Affiliation Department of Gastroenterological Surgery II, Hokkaido University Faculty of Medicine, Hokkaido, Japan

Eiji Oki

Roles Supervision, Writing – review & editing

Affiliation Department of Gastrointestinal Surgery, Kyushu University, Fukuoka, Japan

Masaki Mori

Roles Supervision, Writing – review & editing

Affiliation Tokai University School of Medicine, Kanagawa, Japan

Yusuke Kinugasa

Roles Supervision, Writing – review & editing

Affiliation Department of Gastrointestinal Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: Drs. Akitoshi Nankaku, Hiroki Yonezawa, Kenichi Hakamada, Satoshi Hirano, Eiji Oki and Masaki Mori have no conflicts of interest or financial ties to disclose. Dr. Masanori Tokunaga and Dr. Yusuke Kinugasa have received consulting fees from Riverfield Inc. Dr. Takahiro Kanno is employed by Riverfield Inc. as Chief Technology Officer. Dr. Kenji Kawashima is a founder of Riverfield Inc. and owns stock in Riverfield Inc. These interests do not alter our adherence to PLOS ONE policies on sharing data and materials.