1. Unit of Dermatology, Department of Medical and Oncological Area University of Pisa Pisa Italy
2. Melanoma and Skin Cancer Unit AVNO (Area Vasta Nord Ovest) and Unit of Dermatology Livorno Hospital Livorno Italy
3. Unit of Pathology, Department of Advanced Biomedical Sciences University Federico II of Naples Naples Italy
4. Unit of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery University of Pisa Pisa Italy