[1] Azienda Osped Perugia, Med Oncol, Santa Maria Misericordia Hosp, Perugia, Italy
[2] Ausl Romagna, Oncol Hematol, Ravenna, Italy
[3] Univ Turin, Med Oncol, Turin, Italy
[4] Ist Sci Romagnolo Studio & Cura Tumori IRCCS, Thorac Oncol Grp, Meldola, Italy
[5] Ieo, Thorac Oncol, Milan, Italy
[6] Asst San Gerardo Hosp, Oncol Unit, Monza, Italy
[7] Univ Parma, Med Oncol, Parma, Italy
[8] Univ Hosp Verona, Dept Med, Med Oncol, Verona, Italy
[9] Osped Saronno, Med Oncol, Saronno, Italy
[10] Osped Pisa, Pneumol Univ, Pisa, Italy
[11] Ist Oncol Veneto, Med Oncol, Padua, Italy
[12] Ist Tumori Giovanni Paolo Ii Bari, Natl Canc Res Ctr, Bari, Italy
[13] Ausl Romagna, Ravenna, Italy