1. Merck Research Laboratories; 351 North Sumneytown Pike North Wales PA 19454 U.S.A.
2. Eli Lilly; 893 S. Delaware Street Indianapolis IN 46285 U.S.A.
3. Department of Health Sciences, University of Leicester; Adrian Building, University Road Leicester LE1 7RH U.K.
4. Department of Statistics and Operations Research, University of North Carolina; 318 Hanes Hall Chapel Hill NC 27599 U.S.A.
5. Genentech; South San Francisco CA U.S.A.
6. Sanofi-Aventis; Paris France
7. Université de Technologie de Compiègne, Centre de Recherche de Royallieu; 60205 Compiègne Cedex France
8. INERIS/CRD/VIVA/METO; Verneuil en Halatte France