Peking University - Peking University First Hospital, Peking University - Department of Global Health, Chinese Academy of Macroeconomic Research, affiliation not provided to SSRN, University of Georgia, McGill University, Southern University of Science and Technology - School of Public Health and Emergency Management, Peking University, Peking University - National School of Development, Peking University - Department of Global Health and Peking University - Department of Global Health