1. Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, MOE Key Laboratory of Major Diseases in Children, Genetics and Birth Defects Control Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
2. Shunyi Maternal and Children's Hospital of Beijing Children's Hospital, Beijing, China.
3. Henan Key Laboratory of Pediatric Inherited and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou Hospital of Beijing Children's Hospital, Zhengzhou, China.