1. Division of Dermatology Department of Surgical, Medical, Dental and Morphological Sciences with Interest transplant, Oncological and Regenerative Medicine University of Modena and Reggio Emilia Modena Italy
2. Division of Dermatology University of Ferrara Ferrara Italy
3. Department of Medical, Surgical, and Neurological Science, Dermatology Section University of Siena S Maria alle Scotte Hospital Siena Italy
4. Skin Cancer Unit IstitutoTumori Romagna (IRST) Meldola Italy
5. Division of Dermatology SpedaliCivili University Hospital Brescia Italy
6. Skin Cancer Unit Arcispedale Santa Maria Nuova‐IRCCS Reggio Emilia Italy
7. Department of Pathology University of Modena and Reggio Emilia Modena Italy
8. Department of Surgical, Medical, Dental and Morphological Sciences with Interest Transplant, Oncological and Regenerative Medicine University of Modena and Reggio Emilia Modena Italy
9. Division of Dermatology Department of Clinical and Experimental Medicine University of Parma Parma Italy
10. Department of Dermatology University Hospital of Saint‐Etienne Saint‐Etienne France