1. Sheffield Dermatology Research, Department of Infection and Immunity, University of Sheffield Medical School, Beech Hill, Sheffield, UK;
2. Sanofi, Chilly-Mazarin, France;
3. Department of Dermatology, Oregon Health & Science University, Portland, OR, USA;
4. Department of Dermatology, Keck School of Medicine at USC, University of Southern California, Los Angeles, CA, USA;
5. Department of Dermatology, CHU Hôtel-Dieu, Nantes, France;
6. Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain;
7. Department of Medicine, Section of Dermatology and Venereology, University of Verona, Verona, Italy;
8. University Medical Center Utrecht, Utrecht, The Netherlands;
9. Klinikum der Universität München, Klinik und Poliklinik für Dermatologie und Allergologie, Munich, Germany;
10. Department of Dermatology, Osaka Habikino Medical Center, Habikino City, Osaka, Japan;
11. Helsinki University Central Hospital, Helsinki, Finland;
12. Department of Dermatology, Technische Universität Dresden, Dresden, Germany;
13. Regeneron Pharmaceuticals Inc., Tarrytown, NY, USA