1. School of Public Health Sun Yat‐sen University Guangzhou China
2. Department of Infectious Diseases, Guangzhou Eighth People's Hospital Guangzhou Medical University Guangzhou Guangdong China
3. Sun Yat‐sen University Global Health Institute, School of Public Health, Institute of State Governance Sun Yat‐sen University Guangzhou China
4. Center for Health Information Research Sun Yat‐sen University Guangzhou China