1. Oregon Institute of Occupational Health Sciences, Oregon Health and Science University, Portland, Oregon, USA
2. Department of Cardiology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, Shandong, P.R. China
3. University of Portland, Portland, Oregon, USA
4. Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
5. Air Quality Research Center, University of California, Davis, Davis, California, USA
6. Center for Health and the Environment, University of California, Davis, Davis, California, USA
7. Mechanical and Aerospace Engineering, Civil and Environmental Engineering, and Land, Air and Water Resources, University of California, Davis, Davis, California, USA
8. Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China