1. Department of Medical Administration, West China Hospital, Sichuan University, Chengdu 610000, China
2. Department of Head and Neck Oncology, Cancer Center, West China Clinical School of Medicine, Sichuan University, Chengdu 610041, China
3. Department of Evidence-Based Medicine and Clinical Epidemiology, West China Hospital, Sichuan University, Chengdu 610041, China
4. Department of Integrated Traditional and Western Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
5. Hospital Infection Control Department, West China Hospital, Sichuan University, Chengdu 610041, China
6. Department of General Practice and National Clinical Research Center for Geriatrics, International Medical Center, West China Hospital, Sichuan University, Chengdu 610041, China
7. The First Clinical Medical College of Gansu University of Chinese Medicine, Lanzhou 730000, China
8. Department of Periodical Press, West China Hospital, Sichuan University, Chengdu 610041, China
9. Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China