[1] Azienda USL 6, Ist Toscano Tumori, Oncol Med, Livorno, Italy
[2] Ist Oncol Veneto, Dept Med Oncol, Padua, Italy
[3] Azienda Usl 6, Unita Funz Cure Palliat, Livorno, Italy
[4] Azienda Osped Univ Pisana, UO Oncol Univ, Pisa, Italy
[5] Osped Versilia, Viareggio, LU, Italy
[6] IRCCS Policlin San Matteo, Pavia, Italy
[7] CCS Ist Toscano Tumori, Florence, Italy