1. Unit of Dermatology
2. Unit of Pathology, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa
3. Unit of Pathology, Hospital of Livorno, Livorno
4. Unit of Oncology, University of Pisa, Pisa
5. Statistical Support to Clinical Trials Department, University of Pisa, Pisa
6. Melanoma and Skin Cancer Unit AVNO (Area Vasta Nord Ovest) and Unit of Dermatology, Livorno Hospital, Livorno, Italy