About the Authors

Takuya Iwasawa

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

iwasawat@med.akita-u.ac.jp

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

Mayumi Goto

Roles Investigation, Resources, Software, Validation, Visualization

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

Mibuki Anzai

Roles Investigation, Resources

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

Hiromitsu Shirasawa

Roles Conceptualization, Writing – review & editing

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

Wataru Sato

Roles Writing – review & editing

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

Yukiyo Kumazawa

Roles Writing – review & editing

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

Yukihiro Terada

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

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

Competing Interests

The authors have declared that no competing interests exist.