1. Prenatal Diagnosis Center, Department of Obstetrics & Gynecologic; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University); Ministry of Education; West China Second University Hospital, Sichuan University; Chengdu China
2. SCU-CUHK Joint Laboratory for Reproductive Medicine; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University); Ministry of Education; Department of Pediatrics; West China Second University Hospital, Sichuan University; Chengdu China