1. Genentech, Inc. South San Francisco California
2. Procter & Gamble Mason Ohio
3. Litron Laboratories Rochester New York
4. Bristol‐Myers Squibb Company, Drug Safety Evaluation New Brunswick New Jersey
5. Burke Virginia
6. Sanofi‐Aventis Deutschland GmbH Frankfurt Germany
7. Novartis Pharma AG Basel Switzerland
8. Merck &Co. Inc. West Point Pennsylvania
9. Georgetown University Washington District of Columbia
10. Federal Institute for Drugs and Medical Devices Bonn Germany
11. Toxys Leiden The Netherlands
12. National Institute for Public Health and the Environment Bilthoven The Netherlands
13. L'oréal Recherche & Innovation Aulnay‐Sous‐Bois France
14. Health and Environmental Sciences Institute Washington District of Columbia
15. Charles River Laboratoires Skokie Illinois
16. Sanofi, Research and Development, Preclinical Safety Vitry‐sur‐Seine France
17. Environmental Health Science and Research Bureau, Health Canada Ottawa Ontario Canada
18. Pfizer Inc World Wide Research and Development Groton, Connecticut