Published on in Vol 7, No 12 (2019): December
1 Global Health Research Center, Duke Kunshan University, Kunshan, China
2 School of Population and Global Health, The University of Melbourne, Melbourne, Australia
3 Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau, China
4 School of Public Health, Fudan University, Shanghai, China
5 Northumbria Healthcare National Health Service Foundation Trust, Wallsend, United Kingdom
6 Second School of Clinical Medicine, Wuhan University, Wuhan, China
7 Ningxia Medical University, Yinchuan, China
8 Duke Global Health Institute, Durham, NC, United States
*these authors contributed equally