1. Michael J. Crescenz VAMC Philadelphia PA U.S.A.
2. Department of Dermatology Perelman School of Medicine at the University of Pennsylvania Philadelphia PA U.S.A.
3. Department of Dermatology Brigham and Women's Hospital and Harvard Medical School Boston MA U.S.A.
4. Department of Dermatology Stanford University School of Medicine Redwood City CA U.S.A.
5. Department of Dermatology and Skin Science University of British Columbia Vancouver BC Canada
6. Department of Dermatology Leeds General Infirmary Leeds U.K.
7. Karolinska Universitetssjukhuset Stockholm Sweden
8. Department of Dermatology Wiener Krankenanstaltenverbund Vienna Austria
9. Department of Dermatology Faculty of Medicine University of Tsukuba Tsukuba Japan
10. Department of Dermatology Changi General Hospital Singapore