1. Department of Translational Research and New Technologies in Medicine and Surgery-Unit of Medical Oncology 2, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy;
2. Department of Translational Research and New Technologies in Medicine and Surgery-Unit of Medical Oncology 2, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy;
3. Medical Oncology 3, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy;
4. Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy;
5. Clinical Oncology Unit, Careggi University Hospital - Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy;
6. Clinical Oncology Unit, Careggi University Hospital, Florence, Italy;
7. Oncologia Medica, Comprehensive Cancer Center, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy;
8. Unit of Medical Oncology 2, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy;
9. Medical Oncology 1, Veneto Institute of Oncology IOV–IRCCS, Padua, Italy;
10. Department of Surgery, Cardinale G. Panico Tricase City Hospital, Tricase, Italy;
11. Department of Medical Oncology, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, Meldola, Italy;
12. Medical Oncology Unit, Centro di Riferimento Oncologico di Aviano, Istituto di Ricovero e Cura a Carattere Scientifico, Aviano, Italy;
13. Medical Oncology Unit, Tor Vergata University Hospital, Rome, Italy;
14. Department of Oncology, San Bortolo General Hospital, Azienda ULSS8 Berica, Vicenza, Italy;
15. Clinical Epidemiology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy;