1. Unit of Medical Oncology 2, Azienda Ospedaliera-Universitaria Pisana, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Italy
2. Department of Medical Oncology, IRCCS AOU San Martino-Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
3. Medical Oncology Unit, Department of Biomedical Sciences and Clinical Oncology, University of Bari, Bari, Italy
4. Dermatologic Clinic, Department of Medical Sciences, University of Turin, Turin, Italy
5. Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori, IRST IRCCS, Meldola, Italy
6. Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
7. AOU Cagliari, Department of Medical Oncology, University of Cagliari, Cagliari, Italy