1. Romagna Cancer Registry IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) Meldola Italy
2. Dermatology Unit Department of Surgery and Translational Medicine University of Florence Medical School Florence Italy
3. Skin Cancer Unit IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) Meldola Italy
4. University of Parma Parma Italy
5. Romagna Local Health Unit Forlì Italy