1. Respiratory Disease Unit, Department of Medical Sciences University Hospital of Siena (Azienda Ospedaliera Universitaria Senese, AOUS) Siena Italy
2. University of Pavia pavia Italy
3. Department of Haematological, Pneumological and Cardiovascular Sciences Fondazione IRCCS Policlinico San Matteo pavia Italy
4. Department of Medical Biotechnologies University of Siena Siena Italy
5. Department of Medical Sciences Infectious and Tropical Diseases Unit, University Hospital of Siena Siena Italy
6. Thoracic Surgery Unit, Cardio‐Thoracic and Vascular Department University Hospital of Siena (Azienda Ospedaliera Universitaria Senese, AOUS) Siena Italy