Published on in Vol 23, No 4 (2021): April
1 Vanke School of Public Health, Tsinghua University, Beijing, China
2 School of Medicine, Tsinghua University, Beijing, China
3 Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
4 Department of Health Policy and Management, Peking University, Beijing, China
5 School of Health Humanities, Peking University, Beijing, China