Peking University Clinical Research Institute, Beijing, China. Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China. China-Japan Friendship Hospital, Beijing, China. School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK. The George Institute for Global Health, University of Sydney, Sydney, Australia. Department of Epidemiology and Biostatistics, |Peking University School of Public Health, Beijing, China. The George Institute for Global Health at Peking University Health Science Center, Beijing, China. The Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China. Peking University Clinical Research Institute, Beijing, China. wuyf@bjmu.edu.cn. Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China. wuyf@bjmu.edu.cn. Department of Epidemiology and Biostatistics, |Peking University School of Public Health, Beijing, China. wuyf@bjmu.edu.cn. The George Institute for Global Health at Peking University Health Science Center, Beijing, China. wuyf@bjmu.edu.cn.