| Institution: | 1. Epidemiology Research Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China;2. Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China;3. Department of Health Promotion and Community Health Sciences, School of Public Health, Health Science Center, Texas A&4. M University, College Station, TX, USA;5. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA;6. Guangzhou No. 8 People’s Hospital, Guangzhou, China;7. Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China |
