1. Department of Epidemiology, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia, USA
2. Zachry Department of Civil & Environmental Engineering, Texas A&M University, College Station, Texas, USA
3. Texas A&M Transportation Institute, Texas A&M University System, College Station, Texas, USA
4. Department of Epidemiology & Biostatistics, Texas A&M Health Science Center School of Public Health, College Station, Texas, USA
5. Department of Statistics and Operations Research, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
6. Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
7. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
8. Department of Public Health Sciences, College of Medicine, The Pennsylvania State University, Hershey, Pennsylvania, USA
9. Departments of Environmental & Occupational Health Sciences, Medicine, and Epidemiology, University of Washington, Seattle, Washington, USA
10. Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA