1. Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
2. Department of Infection Control, West China Hospital, Sichuan University, Chengdu 610041, China
3. Department of Operation Management, West China Hospital, Sichuan University, Chengdu 610041, China
4. Department of Equipment and Materials, West China Hospital, Sichuan University, Chengdu 610041, China