1. Department of Medical Genetics and Prenatal Diagnosis, Shenzhen Baoan Women's and Children's Hospital , Shenzhen, China
2. The First Affiliated Hospital of Chongqing Medical University, Chongqing, Chongqing Municipality , China
3. BGI Clinical Laboratories (Shenzhen) Co., Ltd , Shenzhen, China
4. Medical Research Institute, Shenzhen Baoan Women's and Children's Hospital , Shenzhen, China