Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
Jia-wen Zhang
Corresponding author. No. 20, Section 3, Renmin South Road, Wuhou District, Chengdu, Sichuan Province, China.; Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
