1 Department of Infectious Diseases, Third People's Hospital of Changzhou, Director's office, Building 3, No.300, Lanlin road, Changzhou, Jiangsu 213001, People's republic of China.
2 Department of Respiratory Medicine, The Third People's Hospital of Changzhou, No.300, Lanlin road, Changzhou, People's republic of China.
3 Department of Respiration, Shanghai General Hospital, Shanghai Jiao Tong University, 100, Haining Road, Hongkou District, 200080 Shanghai, People's republic of China. Electronic address: bensuqin@163.com.
4 Department of Infectious Diseases, Third People's Hospital of Changzhou, Director's office, Building 3, No.300, Lanlin road, Changzhou, Jiangsu 213001, People's republic of China. Electronic address: Jsntnss16@126.com.