1. Department of Respiratory and Critical Care Medicine; Fuzhou General Hospital of the PLA, Fuzhou General Hospital of Fujian Medical University, Dongfang Hospital of Xiamen University; Fuzhou China
2. Department of Nephrology; Fuzhou General Hospital of the PLA, Fuzhou General Hospital of Fujian Medical University, Dongfang Hospital of Xiamen University; Fuzhou China
3. Department of Infection Control; Fuzhou General Hospital of the PLA, Fuzhou General Hospital of Fujian Medical University, Dongfang Hospital of Xiamen University; Fuzhou China
4. Department of Teaching; Fuzhou General Hospital of the PLA, Fuzhou General Hospital of Fujian Medical University, Dongfang Hospital of Xiamen University; Fuzhou China
5. Department of Pathology; Fujian Provincial Cancer Hospital; Fuzhou China
6. Centers for Disease Control and Prevention of Nanjing Command; Nanjing China