About the Authors

Tomoharu Ishida

Roles Formal analysis, Writing – original draft

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Hideharu Hagiya

Roles Data curation, Supervision, Writing – review & editing

hagiya@okayama-u.ac.jp

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Hiroyuki Honda

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Yasuhiro Nakano

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Hiroko Ogawa

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Mikako Obika

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Keigo Ueda

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Hitomi Kataoka

Roles Investigation

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Yoshihisa Hanayama

Roles Investigation, Writing – review & editing

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Fumio Otsuka

Roles Project administration, Supervision, Writing – review & editing

Affiliation Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Kitaku, Okayama, Japan

Competing Interests

The authors have declared that no competing interests exist.