About the Authors

Woo Jeng Kim

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft

Affiliation Department of Obstetrics and Gynecology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Yong-Wook Kim

Roles Conceptualization, Methodology, Writing – review & editing

ywk@catholic.ac.kr

Affiliation Department of Obstetrics and Gynecology, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea

Competing Interests

The authors have declared that no competing interests exist.