[1] Fdn IRCCS Ist Nazl Tumori, Milan, Italy
[2] Univ Roma La Sapienza, Dept Radiol Oncol & Human Pathol, Oncol Unit, I-00185 Rome, Italy
[3] Cardarelli, Oncol, Naples, Italy
[4] Regina Elena Inst Canc Res, Rome, Italy
[5] Osped Riuniti Umberto I GM Lancisi & G Salesi, Azienda Osped Univ, Polytech Univ Marche Reg, Dept Med Oncol, Ancona, Italy
[6] Univ Naples Federico II, Dept Oncol, Naples, Italy
[7] San Camillo & Forlanini Hosp, Rome, Italy
[8] Inst Canc Res & Treatment, Turin, Italy
[9] Univ Modena & R Emilia, AO Univ Policl Modena, Modena, Italy
[10] Osped Niguarda Ca Granda, Milan, Italy
[11] Vito Fazzi Hosp, Inst Oncol, Lecce, Italy
[12] Osped Riuniti Bergamo, I-24100 Bergamo, Italy
[13] Univ Hosp Cagliari, Cagliari, Italy
[14] Ist Clin Humanitas, Dept Oncol, Milan, Italy
[15] Univ Hosp Udine, Udine, Italy
[16] Univ Genoa, Natl Inst Canc Res, Genoa, Italy
[17] Osped Civ Santa Chiara, Trento, Italy
[18] Univ Florence, Florence, Italy