About the Authors

Jing Zhou

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Li He

Affiliation Department of Ophthalmology, School of Medicine, Emory University, Atlanta, Georgia, United States of America

Ping Liu

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Hui Duan

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Hanze Zhang

Affiliation Department of Epidemiology and Biostatistics, College of Public Health, University of South Florida, Tampa, Florida, United States of America

Weili Li

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Shipeng Gong

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Guidong Su

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Chunlin Chen

zhou_gyn@126.com

Affiliation Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: CC. Data curation: JZ LH CC. Formal analysis: JZ LH HZ. Funding acquisition: CC. Investigation: JZ PL HD WL SG GS. Methodology: JZ CC. Project administration: JZ CC. Resources: JZ LH PL HD HZ WL SG GS CC. Supervision: CC. Validation: JZ LH PL HD WL SG GS. Visualization: JZ LH. Writing – original draft: JZ LH. Writing – review & editing: JZ LH CC.