[1] University of Parma,Scienze Radiologiche, Department of Medicine and Surgery
[2] University of Milan,Department of Clinical Sciences and Community
[3] University Hospital “Policlinico-Vittorio Emanuele”,Department of Medical and Surgical Sciences and Advanced Technologies
[4] Ospedale GB Morgagni,Radiodiagnostic and Radiotherapy Unit
[5] University of Catania,Department of Radiology, Azienda USL Romagna
[6] Aarhus University Hospital,Department of Clinical and Experimental Medicine
[7] Ospedale G.B. Morgagni,Department of Respiratory Diseases and Allergy
[8] Mayo Clinic,Department of Diseases of the Thorax
[9] Mayo Clinic,Biomedical Imaging Resource