1. Department of Respiratory Diseases, Beijing Children´s Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center
for Children´s Health, Beijing, China, Department of Respiratory, Shenzhen Children´s Hospital, Shenzhen, Guangdong, China
2. Department of Paediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
3. Department of Respiratory Diseases, Beijing Children´s Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for
Children´s Health, Beijing, China
4. Laboratory of Respiratory Diseases, Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Beijing Pediatric Research Institute, Beijing Children´s Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children,
Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for Children´s Health, Beijing, China
5. Department of Respiratory Diseases, Beijing Children´s Hospital, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Center for
Children´s Health, Beijing, China, Department of Respiratory, Shenzhen Children´s Hospital, Shenzhen, Guangdong, China