1. Medical Oncology Unit, Cancer Care Center, Sacro Cuore Don Calabria Hospital, Negrar (Verona) - Italy
2. Medical Oncology Unit, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia - Italy
3. Department of Oncology, University of Turin, S. Luigi Hospital, Orbassano (Turin) - Italy
4. Melanoma Unit, Cancer Immunotherapy and Innovative Therapy, Istituto Nazionale Tumori Fondazione G. Pascale, Naples - Italy
5. Medical Oncology Unit, University Hospital of Verona, Verona - Italy
6. Division of Oncology, S. Orsola-Malpighi Hospital, Bologna - Italy
7. Department of Medical Oncology, IRCCS San Martino, IST Istituto Nazionale per la Ricerca sul Cancro, Genoa - Italy