1. Department of Dermatology Hospital de la Santa Creu i Sant Pau Barcelona Spain
2. Unit of Dermatology IRCCS Humanitas Research Hospital Rozzano Milan Italy
3. Department of Biomedical Sciences Humanitas University Pieve Emanuele Milan Italy
4. Department of Immunology ‐ Translational Biology, Biomarkers & Early Development Janssen Research & Development La Jolla CA/Spring House PA USA
5. Medical Affairs, Janssen‐Cilag Paris France
6. Medical Affairs, Janssen‐Cilag GmbH Neuss Germany
7. Department of Dermatology Hôpital Larrey, CHU Toulouse Toulouse France
8. Department of Dermatology University Hospital CHUV Lausanne Switzerland