About the Authors

Dong Liu

Roles Funding acquisition, Supervision, Writing – review & editing, Conceptualization

Affiliations Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China, Hi-Tech Zone Hospital for Women and Children, West China Second University Hospital, Sichuan University, China

Xiaoyan Luo

Roles Resources, Software, Writing – original draft

Affiliations Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China

Kunyan Zhou

Roles Data curation, Formal analysis, Funding acquisition, Software, Writing – original draft, Writing – review & editing

zhoukunyan2006@126.com

Affiliations Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, China

Competing Interests

The authors have declared that no competing interests exist.