1. ICF International, Washington, DC
2. Center for Risk Analysis, Harvard University, Boston, Massachusetts
3. Department of Dermatology, Henry Ford Hospital, Detroit, Michigan
4. Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts
5. US Environmental Protection Agency, Washington, DC
6. Center of Excellence in Climate Change Communication Research, Department of Communication, George Mason University, Fairfax, Virginia
7. Laboratory of Photobiology and Photoimmunology, Department of Environmental and Occupational Health, School of Public Health and Health Services, George Washington University Medical Center, Washington, DC