1. Department of Dermatology University of Trieste Trieste Italy
2. Department of Medical Oncology Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Aviano Italy
3. Cancer Epidemiology Unit Centro di Riferimento Oncologico di Aviano (CRO) IRCCS Aviano Italy
4. Department of Dermatology University Hospital of Saint Etienne Saint‐Etienne France
5. Department of Medical, Surgical and Neurological Science, Dermatology Section University of Siena, S. Maria alle Scotte Hospital Siena Italy
6. Department of Dermatology University of Parma Parma Italy
7. Skin Cancer Unit Istituto Scientifico Romagnolo per lo Studio dei Tumori “Dino Amadori” (IRST) IRCCS Meldola Italy
8. Division of Dermatology, Department of Medicina and Surgery Azienda Ospedaliera‐Universitaria di Parma Parma Italy
9. Department of Dermatology University of Modena and Reggio Emilia Modena Italy
10. Dermatologic Unit, Department of Medical Specialities Arcispedale Santa Maria Nuova IRCCS di Reggio Emilia Reggio Emilia Italy
11. Department of Dermatology, Policlinico Umberto I Sapienza University of Rome Rome Italy
12. Department of Medicine (DAME) University of Udine Udine Italy