1. Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
2. Santa Chiara Hospital, Trento, Italy
3. National Cancer Center CRO, Aviano, Italy
4. Santa Maria Degli Angeli General Hospital, Pordenone, Italy
5. Medical Oncology Unit I, Department of Clinical & Experimental Oncology Istituto Oncologico Veneto IOV, IRCCS, Padova, Italy
6. S Vincenzo Hospital, Taormina, Italy
7. Istituti Ospitalieri di Cremona, Cremona, Italy
8. Medical Oncology, Azienda Ospedaliera Villa Sofia-Cervello, Palermo, Italy
9. Campus Bio-Medico University of Rome, Rome, Italy
10. Oncology Unit I, Fondazione IRCCS, Istituto Nazionale dei Tumori, Milan, Italy
11. Civil Hospital, Lugo di Romagna, Italy
12. Institut Gustave Roussy, Villejuif, France
13. University Hospital of Parma, Parma, Italy
14. Dipartimento di Oncologia, Azienda Ospedaliero-Universitaria, Udine, Italy
15. Medical Oncology Unit, Piazza OMS, 1, Pope John Paul XXIII Hospital, Bergamo, Italy
16. Santa Anna Hospital, Como, Italy
17. Division of Medical Oncology, Università la Sapienza Roma, Rome, Italy