1. Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University , Beijing 100191, China
2. Center for Healthy Aging, Peking University Health Science Center , Beijing 100191, China
3. Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital , Beijing 100191, China
4. Department of Epidemiology and Biostatistics, School of Public Health, Peking University , Beijing 100191, China
5. Laboratory of Environmental Precision Health, Mailman School of Public Health, Columbia University , New York, NY 10032, USA