1. Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children’s HospitalCapital Medical University, National Center for Children’s Health Beijing China
2. The 2nd Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University Wenzhou China
3. Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health Beijing China
4. The Children’s Hospital-Zhejiang University School of Medicine Hangzhou China
5. Children’s Hospital Capital Institute of Pediatrics Beijing China
6. Shengjing Hospital of China Medical University Shenyang China
7. Children’s Hospital of Chongqing Medical University Chongqing China
8. The First Affiliated Hospital of Guangzhou Medical University Guangzhou China
9. Guangzhou Women and Children’s Medical Center Guangzhou China
10. Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai China
11. Yinchuan Women and Children Healthcare Hospital Yinchuan China
12. Children’s hospital of Changchun Changchun China