1. Department of Melanoma, Cancer Immunotherapy and Development Therapeutics, I.N.T. IRCCS Fondazione “G. Pascale” Napoli, Naples, Italy
2. Department of Oncology and Haematology, Papa Giovanni XXIII Cancer Center Hospital, Bergamo, Italy
3. University of Perugia, Perugia, Italy
4. Biotherapy of Tumors Unit, Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milan, Italy
5. Immunotherapy and Cell Therapy Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
6. Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska Curie National Research Institute of Oncology, Warsaw, Poland
7. Department of Medical Oncology 1, IRCCS Regina Elena National Cancer Institute, Rome, Italy
8. Department of Medical Oncology, Hospital Clínic Barcelona, Barcelona, Spain
9. Rare Tumors and Melanoma Unit, IRCCS Istituto dei Tumori “Giovanni Paolo II,” Bari, Italy
10. Oncology Unit, Foundation IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
11. First Department of Medicine, National and Kapodistrian University of Athens, Zografou, Greece
12. Department of Dermatology, Medical University of Graz, Graz, Austria
13. Department of Medical Sciences, Dermatologic Clinic, University of Turin, Turin, Italy
14. Department of Oncology-Pathology, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
15. IRCCS Ospedale Policlinico San Martino, Skin Cancer Unit, Genova, Italy
16. Division of Melanoma Sarcoma and Rare Tumors, IRCCS European Institute of Oncology, Milan, Italy
17. Department of Interdisciplinary Medicine, Oncology Unit, University of Bari “Aldo Moro,” Bari, Italy
18. Unit of Melanoma Medical Oncology, Department of Medical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
19. Department of Medical Oncology, University Hospital Dexeus, Barcelona, Spain
20. Academic Hospital “Santa Maria della Misericordia,” Udine, Italy
21. Department of Clinical Medicine and Surgery, University of Naples “Federico II,” Naples, Italy
22. Department of Immunology and Oncology, Clínica Universidad de Navarra, Pamplona, Spain
23. Immuno-Oncology & Targeted Cancer Biotherapies, University of Sassari, Unit of Cancer Genetics, IRGB-CNR, Sassari, Italy
24. Medical Oncology Unit, AORN San Pio Benevento, Benevento, Italy
25. Regina Elena National Cancer Institute, IRCCS—Biostatistical Unit, Rome, Italy
26. Department of Dermatology, University and University Hospital Zurich, Zurich, Switzerland
27. Melanoma Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy