China-Japan Friendship Hospital, Beijing, China. Peking University Clinical Research Institute, Beijing, China. The George Institute for Global Health, University of Sydney, Sydney, Australia. The George Institute for Global Health at Peking University Health Science Center (PUHSC), Beijing, China. Peking University Third Hospital, Beijing, China. Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing, China. Beijing Anzhen Hospital, Capital Medical University, Beijing, China. Peking University First Hospital, Beijing, China. Peking University People's Hospital, Beijing, China. Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.