[1] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Thorac Surg & Lung Transplant Unit, Milan, Italy
[2] Univ Milan, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Pathophysiol & Transplantat, Milan, Italy
[3] Univ Milan, Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Hlth Sci, Milan, Italy
[4] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Internal Med, Resp Unit, Milan, Italy
[5] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Dept Internal Med, Adult Cyst Fibrosis Ctr, Milan, Italy
[6] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Div Pathol, Milan, Italy