[1] Santa Maria Della Misericordia Hosp, Med Oncol, Perugia, Italy
[2] Fdn Irccs Ist Nazl Tumori Milan, Thorac Oncolgy Unit, Milan, Italy
[3] Univ Hosp Geneva, Med Oncol, Geneva, Switzerland
[4] Attikon Univ Hosp, Med Oncol, Athens, Greece
[5] St Savvas Anticanc Hosp, Athens, Greece
[6] Osped Cannizzaro, Catania, Italy
[7] Agios Andreas Gen Hosp, Patras, Greece
[8] Hosp Hm Sanchinarro, Madrid, Spain
[9] Metropolitan Hosp, Oncol Unit, Athens, Greece
[10] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[11] Clin Canc Ctr Giovanni Paolo Ii, Thorac Med Oncol Unit, Bari, Italy
[12] Hop Univ Geneve, Geneva, Switzerland
[13] Osped Versilia, Lucca, Italy
[14] Hygeia Hosp, Athens, Greece
[15] Fdn Irccs Ist Nazl Tumori, Dept Med Oncol, Milan, Italy
[16] Henry Dunant Hosp Ctr, Dept Med Oncol 2, Athens, Greece