About the Authors

Tomoya Iida

Roles Project administration, Writing – original draft

tomoya.iida.0306@gmail.com

Affiliations Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan, Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan

Hiroyuki Kaneto

Roles Conceptualization, Data curation, Supervision

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Kohei Wagatsuma

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Hajime Sasaki

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Yumiko Naganawa

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Suguru Nakagaki

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Shuji Satoh

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Haruo Shimizu

Roles Data curation

Affiliation Department of Gastroenterology, Muroran City General Hospital, Muroran, Hokkaido, Japan

Hiroshi Nakase

Roles Supervision, Writing – review & editing

Affiliation Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan

Competing Interests

The authors have declared that no competing interests exist.