[1] Natl Inst Canc Res, Lung Canc Unit, I-16132 Genoa, Italy
[2] Natl Inst Canc Res, Immunol Therapy Lab, I-16132 Genoa, Italy
[3] Catholic Univ, Thorac Surg Unit, Rome, Italy
[4] IRCCS San Raffaele, Rome, Italy
[5] San Martino Hosp, Thorac Surg Unit, Genoa, Italy