1 Department of Medical and Surgical Sciences at University of Modena Reggio Emilia, Lung Unit and Respiratory Intensive Care Unit at University Hospital of Modena Policlinico, Modena, Italy.
2 Department of Medical and Surgical Sciences at University of Modena Reggio Emilia, Lung Unit and Respiratory Intensive Care Unit at University Hospital of Modena Policlinico, Modena, Italy. Electronic address: enrico.clini@unimore.it.