1. Department of Oncology, University of Torino at San Luigi Hospital, Orbassano, Turin, Italy
2. Department of Medical Sciences, University of Torino, Italy
3. Laboratory of Biochemistry and Genetics, Pneumology Unit, Department of Molecular Medicine University and Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
4. University of Torino and Collegio Carlo Alberto, Torino, Italy
5. Department of Oncology, Radiation Oncology, University of Torino, Italy