1. Department of Medical and Surgical Sciences (DIMEC) University of Bologna Bologna Italy
2. Respiratory and Critical Care Unit IRCCS Azienda Ospedaliero‐Universitaria di Bologna Bologna Italy
3. Department of Medical Specialities, Pulmonology Unit GB Morgagni—L. Pierantoni Hospital 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 Medical and Surgical Sciences (DIMEC) University of Bologna/Forlì Campus Forlì Italy
7. Department of Respiratory Diseases and Allergy Aarhus University Hospital Aarhus Denmark