Chongqing Medical University - Department of Respiratory Medicine, Chongqing Medical University - Department of Respiratory Medicine, Chongqing Medical University - National Clinical Research Center for Child Health and Disorders, Oregon Health & Science University, Lanzhou University - Evidence-Based Social Science Research Center, Chongqing Medical University - Department of Respiratory Medicine and Chongqing Medical University - Department of Respiratory Medicine

Peking University, School of Public Health, Department of Laboratorial Science and Technology, Peking University, School of Public Health, Department of Laboratorial Science and Technology, Peking University, School of Public Health, Department of Laboratorial Science and Technology, Peking University, School of Public Health, Department of Laboratorial Science and Technology, Beijing Institute of Microbiology and Epidemiology - State Key Laboratory of Pathogen and Biosecurity, Peking University, School of Public Health, Department of Laboratorial Science and Technology, Chongqing Medical University - Department of Respiratory Medicine, Academy of Military Sciences - Beijing Institute of Microbiology and Epidemiology and Chongqing Medical University - Department of Respiratory Medicine