[1] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Thorac Surg & Lung Transplantat Unit, Milan, Italy
[2] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Prevent Med, Epidemiol Unit, Milan, Italy
[3] Univ Milan, Milan, Italy
[4] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Med Oncol Unit, Milan, Italy