1. American Cancer Society, Atlanta Georgia, USA
2. National Institute for Occupational Safety and Health, Cincinnati, Ohio, USA
3. International Agency for Research on Cancer, Lyon, France
4. Institute universitaire romand de Sante au Travail, Lausanne, Switzerland
5. U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, USA
6. Agency for Toxic Substances and Disease Registry, Chamblee, Georgia, USA
7. University of Pittsburgh, Pittsburgh, Pennsylvania, USA
8. German Cancer Research Center, Heidelberg, Germany
9. Finnish Institute of Occupational Health, Helsinki, Finland
10. University of Washington, Seattle, Washington, USA
11. National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
12. University of Copenhagen, Copenhagen, Denmark
13. University of Central Lancashire/Westlakes Scientific Consulting, Cumbria, Lancashire, United Kingdom
14. Fraunhofer Institute of Toxicology and Experimental Medicine, Hannover, Germany
15. Nagoya University Graduate School of Medicine, Nagoya, Japan
16. University of Iowa, Iowa City, Iowa, USA
17. National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
18. University of Montreal Hospital Research Center, Montreal, Quebec, Canada
19. University of California, Berkeley, Berkeley, California, USA
20. Institute of Occupational and Environmental Medicine, University of Birmingham, Birmingham, United Kingdom
21. Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
22. University of Connecticut Health Center, Farmington, Connecticut, USA
23. Imperial College London, London, United Kingdom
24. California Environmental Protection Agency, Oakland, California, USA