[1] Novartis Pharma AG, CH-4002 Basel, Switzerland
[2] Natl Inst Publ Hlth, Dept Environm Med, N-0403 Oslo, Norway
[3] Novo Nordisk AS, DK-2760 Malov, Denmark
[4] CIT, F-27005 Evreux, France
[5] Sanofi Synthelabo Res, Alnwick Res Ctr, Alnwick NE66 2JH, Northd, England
[6] HOVAT Pharma Consulting, CH-4123 Allschwil, Switzerland
[7] Syngenta AG, CH-4058 Basel, Switzerland
[8] Univ Essen Gesamthsch, Med Ctr, Inst Hyg & Occupat Med, Toxicol Labs, D-45147 Essen, Germany
[9] Hlth & Safety Author, Dublin 2, Ireland
[10] Med Control Agcy, London SW8 5NQ, England