1. Oregon Medical Research Center; 9495 SW Locust St, Suite G Portland OR 97223 U.S.A
2. Dermatologikum Berlin; Berlin Germany
3. ScIderm Research Institute; Hamburg Germany
4. K. Papp Clinical Research and Probity Medical Research; Waterloo ON Canada
5. Harvard Medical School; Boston MA U.S.A
6. SKiN Centre for Dermatology and Probity Medical Research; Peterborough ON Canada
7. Queens University; Kingston ON Canada
8. Department of Dermatology; University of Texas; Houston TX U.S.A
9. University of Melbourne; Melbourne Vic. Australia
10. University of Lübeck; Lübeck Germany
11. Merck & Co., Inc.; Kenilworth NJ U.S.A