About the Authors

Akihiro Shitara

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

shitaraa@med.akita-u.ac.jp

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Kazumasa Takahashi

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Mayumi Goto

Roles Investigation, Resources, Validation, Visualization

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Harunori Takahashi

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Takuya Iwasawa

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Yohei Onodera

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Kenichi Makino

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Hiroshi Miura

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Hiromitsu Shirasawa

Roles Conceptualization, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Wataru Sato

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Yukiyo Kumazawa

Roles Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Yukihiro Terada

Roles Conceptualization, Funding acquisition, Project administration, Writing – original draft, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Akita University Graduate School of Medicine Hondo, Akita, Japan

Competing Interests

The authors have declared that no competing interests exist.