1. Pediatric Department Union Hospital Tongji Medical College Huazhong University of Science and Technology Hubei China
2. China National Clinical Research Center for Respiratory Diseases Department of Respiratory Medicine Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China
3. Department of Pediatrics Shenzhen Third People’s Hospital Second Affiliated Hospital of Southern University of Science and Technology Shenzhen China
4. Children’s medical center of Hunan Provincial People’s Hospital Hunan China
5. Taihe Hospital Shiyan Hubei China
6. Department of Pediatrics the First Affiliated Hospital of Anhui Medical University Hefei Anhui China
7. Department of Respiratory Medicine Shenzhen Children’s Hospital Shenzhen China
8. Department of Pediatrics Guizhou Provincial People’s Hospital Guizhou China
9. Department of Respiratory medicine The Second People’s Hospital of Fuyang Anhui China
10. Department of Pediatrics the People Hospital of Bozhou Anhui China
11. Loudi Central Hospital Loudi City, Hunan China
12. Department of Pediatrics the First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
13. Department of Pediatrics Xiangyang Central Hospital Xiangyang Hubei China
14. Department of Pediatric Shengjing Hospital of China Medical University Liaoning China
15. Department of General Practice Guizhou Provincial People’s Hospital Office of Academic Research Jiangjunshan Hospital Guiyang, Guizhou China
16. Department of Pediatric Guangzhou Women and Children’s Medical Center Guangzhou Medical University Guangzhou China
17. Department of Pediatrics Shangdong Provincial Hospital Affiliated to Shandong First Medical University Shangdong China
18. Changsha Maternal and Child Health Hospital Changsha Hunan China
19. Department of Pediatrics Jingzhou First People’s Hospital Jingzhou Hubei China
20. Children’s Hospital Affiliated to Zhengzhou University Zhengzhou Henan China
21. Huangshi Maternity and Child Health Care Hospital Huangshi Hubei China
22. Guizhou Provincial People’s Hospital Guizhou China
23. Department of Pediatrics the Maternal Child Health Hospital of Guangxi Zhuang Autonomous Region Nanning Guangxi China
24. Xishui People’s Hospital Huanggang Hubei China
25. Beijing Pediatric Reasearch Institute Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China
26. Chinese University of Hong Kong Shatin Hong Kong China
27. Beijing Key Laboratory of Pediatric Respiratory Infectious Diseases Beijing Pediatric Research Institute Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China
28. Hematologic Oncology Center Beijing Children’s Hospital Capital Medical University National Center for Children’s Health Beijing China