About the Authors

Seung Mi Lee

Affiliations Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea, Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul, Korea

Kyo Hoon Park

pkh0419@snubh.org

Affiliations Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea, Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea

Eun Young Jung

Affiliations Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea, Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea

Ji Ae Jang

Affiliations Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea, Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea

Ha-Na Yoo

Affiliations Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea, Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea

Competing Interests

The authors declare no conflict of interest.

Author Contributions

Conceptualization: SML KHP. Data curation: SML KHP EYJ JAJ HNY. Formal analysis: SML KHP EYJ. Funding acquisition: KHP EYJ JAJ HNY. Investigation: SML KHP EYJ JAJ HNY. Methodology: SML KHP. Project administration: SML KHP EYJ JAJ HNY. Resources: KHP EYJ JAJ HNY. Supervision: KHP. Validation: SML KHP. Visualization: SML KHP EYJ. Writing – original draft: SML KHP. Writing – review & editing: SML KHP EYJ JAJ HNY.