[1] Policlin Hosp, Dept Med Oncol, Perugia, Italy
[2] Univ Turin, Dept Clin & Biol Sci, Turin, Italy
[3] S Chiara Hosp, Dept Med Oncol, Pisa, Italy
[4] Forlanini Hosp, Dept Pneumol 3, Rome, Italy
[5] Forlanini Hosp, Dept Pneumol 8, Rome, Italy
[6] Ist Regina Elena, Dept Med Oncol 2, I-00161 Rome, Italy
[7] Ist Regina Elena, Dept Med Oncol 1, I-00161 Rome, Italy
[8] Univ Naples Federico II, Natl Canc Inst G Pascale, Dept Med Oncol B, Naples, Italy
[9] Univ Naples Federico II, Dept Endocrinol & Mol & Clin Oncol, Naples, Italy
[10] Umberto I Hosp, Dept Med Oncol, Ravenna, Italy
[11] S Maria delle Croci Hosp, Dept Med Oncol, Ravenna, Italy
[12] S Maria Hosp, Dept Med Oncol, Terni, Italy
[13] S Maria Hosp, Dept Radiat Oncol, Reggio Emilia, Italy
[14] S Gerardo Hosp, Dept Radiat Oncol, Monza, Italy
[15] Infermi Hosp, Dept Med Oncol, Rimini, Italy
[16] Univ Messina, Dept Med Oncol, Messina, Italy
[17] Osped Civile Maggiore, Dept Pneumol, I-37126 Verona, Italy
[18] Vincenzo Cervello Hosp, Dept Pneumol 1, Palermo, Italy
[19] Infermi Hosp, Dept Pneumol, Biella, Italy