From the 1Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
2Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, China.
Funding/support: The research was supported by the National Natural Science Foundation of China (no. 82101754).
Financial disclosures/conflicts of interest: None reported.
Author Contributions: Conceptualization: H.-X.C. Methodology: Y.-N.L., X.T., W.X., X.D., J.L., Z.-L.W., and H.-X.C. Data curation: Y.-N.L. and X.T. Writing—original draft preparation: Y.-N.L. Writing—review and editing: H.-X.C. Funding acquisition: H.-X.C. All authors have read and agreed to the published version of the manuscript.
Address correspondence to: Heng-Xi Chen, MD, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, No. 20, 3rd Section, South Renmin Road, Chengdu 610041, Sichuan, China. E-mail: [email protected]