1. Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
2. Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
3. Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
4. Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
5. Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
6. Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China