About the Authors

Youn Jin Choi

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

Eun Young Ki

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

Chuqing Zhang

Affiliation Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Special Administrative Region, China

Wendy C. S. Ho

Affiliation Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Special Administrative Region, China

Sung-Jong Lee

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

Min Jin Jeong

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

Paul K. S. Chan

Contributed equally to this work with: Paul K. S. Chan, Jong Sup Park

jspark@catholic.ac.kr (JSP); paulkschan@cuhk.edu.hk (PKC)

Affiliation Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Special Administrative Region, China

Jong Sup Park

Contributed equally to this work with: Paul K. S. Chan, Jong Sup Park

jspark@catholic.ac.kr (JSP); paulkschan@cuhk.edu.hk (PKC)

Affiliation Departments of Obstetrics and Gynecology, Seoul 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.

Author Contributions

Conceptualization: YJC PKC JSP. Data curation: YJC CZ WCH. Formal analysis: YJC. Funding acquisition: JSP. Investigation: YJC. Methodology: CZ WCH. Project administration: PKC JSP. Resources: EYK JSP. Software: CZ WCH. Supervision: PKC JSP. Validation: YJC CZ WCH. Visualization: YJC CZ WCH. Writing – original draft: YJC. Writing – review & editing: YJC SJL MJJ PKC JSP.