1. Environmental Safety Laboratory, Unilever Research, Colworth House, Sharnbrook, Bedford MK44 1LQ, UK
2. School of Pharmacy, University of California, San Francisco, CA 94143, USA
3. The Welsh School of Pharmacy, King Edward VII Avenue, Cardiff CF1 3XF, UK
4. SENECA Central Toxicology Laboratory, Alderley Park, Macclesfield, Cheshire SK10 4TJ, UK
5. Pharmacia Research Center AS, Herredsvejen 2, 3400 Hillerod, Denmark
6. Instituts für Pharmakologie und Toxikologie der Universität Münster, Unweltprobenbank für Human-Organproben mit Datenbank, Domagkstrasse 11, 48129 Münster, Germany
7. Department of Dermatology, School of Medicine, University of California, San Francisco, CA 94143-0989, USA
8. Faculty of Pharmacy, Université Paris XI, 5 Rue JB Clement, 92296 Chatenay-Malabry, France
9. Department of Dermatology, University of Cologne, J. Steljmannstrasse 9, 5000 Köln 41, Germany
10. Centro de Investigacion y Desarrollo, C/Jorge Girona 18–26, 08034 Barcelona, Spain
11. Pharmacy Department, University of Athens, Panepistimiopoli, 15771 Athens, Greece
12. Chiesi Farmaceutici S.p.A., Via Palermo 26/A, 43100 Parma, Italy
13. CIRD Galderma, 635 Routes des Lucioles, 06902 Sophia Antipolis Cedex, France
14. Department of Pharmacokinetics, Schering AG, 1000 Berlin 65, Germany
15. Dow Corning, Rue de General de Galle 62, 1310 La Hulpe, Belgium