1. Department of Toxicology-Ecotoxicology, INERIS, 60550 Verneuil en Halatte, France
2. Fraunhofer Institute of Toxicology & Aerosol Research, Nikola-Fuchs-Strasse 1, 3000 Hannover 61, Germany
3. Institute of Occupational Medicine, University of Edinburgh, 8 Roxburgh Place, Edinburgh EH8 9SU, UK
4. Dipartimento di Chimica Inorganica Chimica Fisica, Universitá di Torino, Via P. Giuria 9, 10125 Torino, Italy
5. Laboratory of Veterinary Biochemistry, Utrecht University, 3508 TD Utrecht, The Netherlands
6. ZENECA Central Toxicology Laboratory, Alderley Park, Macclesfield, Cheshire SK10 4TJ, UK
7. Centre for Human Genetics, University Hospital Campus Gathuisberg, Herestraat 49, 3000 Louvain, Belgium
8. CJF INSERM, N9105, Faculté de Pharmacie, 67401 Illkirch, France
9. INSERM U295, Université de Rouen, 97 Avenue de l'Université, 76803 Saint Etienne de Rouvray, France
10. Laboratorium voor Pneumologie, Katholieke Universiteit Leuven, Herestraat 49, 3000 Louvain, Belgium
11. National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA
12. Abtelung Inhalationstoxikologie, Pharma-Forschungszentrum, Bayer AG, Aprather Weg, 42096 Wuppertal, Germany
13. Department of Biochemistry, University College of Wales, Cardiff CF1 1ST, UK
14. SANDOZ Pharma Ltd, 4002 Basel, Switzerland
15. California Regional Primate Research Center, Hutchison Avenue, University of California, Davis, CA 95616, USA