[1] IRCCS San Matteo Hospital Foundation,Pneumology Unit
[2] University of Pavia,Department of Internal Medicine and Therapeutics
[3] IRCCS University Hospital Sant’Orsola Malpighi,Interventional Pneumology Unit
[4] IRCCS San Matteo Hospital Foundation,Clinical Epidemiology and Biometry Service
[5] Intensive Care Unit- IRCCS San Matteo Hospital Foundation,Pneumology Unit, Internal Medicine and Infectious Diseases Department
[6] IRCCS Policlinico San Matteo Foundation,undefined