1. Department of Dermatology University of Modena and Reggio Emilia Modena Italy
2. Centro Oncologico ad Alta Tecnologia Diagnostica Azienda Unità Sanitaria Locale – IRCCS di Reggio Emilia Reggio Emilia Italy
3. First Department of Dermatology Aristotle University Thessaloniki Greece
4. First Department of Dermatology and Venereology National and Kapodistrian University of Athens, A. Sygros Hospital Athens Greece
5. Institute of Dermatology Catholic University Rome Italy
6. Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy
7. Center of Dermato‐oncology University Department of Dermatology Eberhard Karls University Tuebingen Germany