1 Unit of Respiratory Diseases and Lung Transplantation, Department of Medical and Surgical Sciences and Neurosciences, University Hospital of Siena, Siena, Italy - dalessandro.miriana@gmail.com.
2 Unit of Respiratory Diseases and Lung Transplantation, Department of Medical and Surgical Sciences and Neurosciences, University Hospital of Siena, Siena, Italy.
3 Imaging Unit, Department of Medical and Surgical Science and Neurosciences, University Hospital of Siena, Siena, Italy.