1. Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
2. Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China–Japan Friendship Hospital, Beijing 100029, China
3. National Center for Respiratory Medicine and National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
4. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100007, China
5. Peking University Center for Public Health and Epidemic Preparedness and Response, Beijing 100191, China
6. Key Laboratory of Molecular Cardiovascular Sciences (Peking University), Ministry of Education, Beijing 100191, China
7. National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 100037, China
8. Medical Research Council Population Health Research Unit at the University of Oxford, Oxford OX3 7LF, UK
9. Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
10. Maiji Center for Disease Control and Prevention, Tianshui, Gansu 741020, China
11. China National Center for Food Safety Risk Assessment, Beijing 100022, China.