1. Cardio-Thoracic Department; Pulmonology Unit, Catholic University, “A. Gemelli” Hospital; Rome Italy
2. Department of Bioimaging and Radiological Sciences; Institute of Radiology, Catholic University, “A. Gemelli” Hospital; Rome Italy
3. Department of Diseases of the Thorax; GB Morgagni Hospital; Forlì Italy
4. Department Respiratory Diseases & Allergology; Aarhus University Hospital; Denmark
5. Pathology Unit; GB Morgagni Hospital; Forlì Italy