1. Interventional Pulmonology Unit of the 1st Respiratory Medicine Department National and Kapodistrian University of Athens, "Sotiria" Hospital Athens Greece
2. Department of Medical Specialities, Pulmonology Unit GB Morgagni—L. Pierantoni Hospital Forlì Italy
3. Department of Medical and Surgical Sciences (DIMEC) University of Bologna/Forlì Campus Forlì Italy
4. Department of Pathology GB Morgagni—L.Pierantoni Hospital Forlì Italy
5. Department of Radiology GB Morgagni—L.Pierantoni Hospital Forlì Italy
6. Department of Respiratory Diseases and Allergy Aarhus University Hospital Aarhus Denmark