1. Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA
2. Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota, USA
3. Department of Medicine, and
4. Department of Pathology, University of Vermont, Burlington, Vermont, USA
5. Department of Environmental and Occupational Health Sciences, and
6. Department of Biostatistics, University of Washington, Seattle, Washington, USA
7. Department of Occupational and Environmental Health, University of Iowa, Iowa City, Iowa, USA
8. Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
9. Institute for Minority Health Research, University of Illinois at Chicago, Chicago, Illinois, USA
10. Department of Preventive Medicine, Northwestern University, Chicago, Illinois, USA
11. Department of Epidemiology,
12. Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington, USA