About the Authors

Hyun Chul Jeong

Contributed equally to this work with: Hyun Chul Jeong, Ho Yeon Kim

Roles Conceptualization, Investigation, Writing – original draft

‡ These authors also contributed equally to this work.

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Ho Yeon Kim

Contributed equally to this work with: Hyun Chul Jeong, Ho Yeon Kim

Roles Conceptualization, Methodology, Validation, Writing – original draft

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Hee Youn Kim

Roles Data curation, Formal analysis, Methodology

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Eun-Jin Wang

Roles Investigation, Methodology, Supervision

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Ki Hoon Ahn

Roles Conceptualization, Funding acquisition, Project administration, Writing – original draft

haijkim@korea.ac.kr (HJK); akh1220@hanmail.net (KHA)

‡ These authors also contributed equally to this work.

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Min-Jeong Oh

Roles Supervision, Validation, Writing – review & editing

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Byung Min Choi

Roles Resources, Supervision, Validation

Affiliation Department of Pediatrics, Ansan Hospital, Korea University College of Medicine, Ansan, Korea

Hai-Joong Kim

Roles Conceptualization, Supervision, Validation, Writing – review & editing

haijkim@korea.ac.kr (HJK); akh1220@hanmail.net (KHA)

‡ These authors also contributed equally to this work.

Affiliation Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.