1 Department of Respiratory and Critical Care Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
2 Institute of Respiratory Diseases, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
3 Shanghai Key Laboratory of Emergency Prevention, Diagnosis and Treatment of Respiratory Infectious Diseases, Shanghai 200025, China.
4 School of Public Health, Fudan University, Shanghai 200032, China.
5 Jiading District Center for Disease Control and Prevention, Shanghai 201800, China.
6 Department of Statistical Information, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201801, China.
7 Department of Emergency, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.
8 Key Laboratory of Public Health Safety of the Ministry of Education and Key Laboratory of Health Technology Assessment of the Ministry of Health, Fudan University, Shanghai 200032, China.