1. University Medical Center Utrecht; Utrecht the Netherlands
2. University of Lübeck; Lübeck Germany
3. St. John's Institute of Dermatology; London U.K.
4. Dermatologikum and TFS Research Institute; Hamburg Germany
5. Sheffield Dermatology Research; The University of Sheffield; Sheffield U.K.
6. Regeneron Pharmaceuticals, Inc.; Tarrytown NY U.S.A.
7. Regeneron Pharmaceuticals, Inc.; Basking Ridge NJ U.S.A.
8. Sanofi; Chilly-Mazarin France
9. Sanofi; Cambridge MA U.S.A.
10. Sanofi; Bridgewater NJ U.S.A.