1. Environmental Defense, Washington, DC, USA
2. Woodrow Wilson International Center for Scholars, Washington, DC, USA
3. Rice University, Houston, Texas, USA
4. National Institute for Occupational Safety and Health, Morgantown, West Virginia, USA
5. Procter and Gamble, Cincinnati, Ohio, USA
6. U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
7. Food and Drug Administration, Rockville, Maryland, USA
8. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
9. North Carolina State University, Raleigh, North Carolina, USA
10. University of Rochester, Rochester, New York, USA
11. University of Michigan, Ann Arbor, Michigan, USA
12. University of California at Davis, Davis, California, USA
13. University of Louisville, Louisville, Kentucky, USA
14. Union of Concerned Scientists, Cambridge, Massachusetts, USA
15. Natural Resources Defense Council, Washington, DC, USA
16. The Hamner Institutes for Health Sciences, Research Triangle Park, North Carolina, USA