1. Department of Medical and Surgical Sciences, Institute of Respiratory Diseases, Policlinico Universitario “Riuniti” di Foggia, University of Foggia, 71122 Foggia, Italy
2. Department of Internal Medicine, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
3. Respiratory Medicine Unit, Department of Clinical Medicine and Surgery, Federico II University, 80131 Naples, Italy
4. Department of Radiology, “SS. Annunziata” Hospital, University of Chieti, 66100 Chieti, Italy
5. Department of Radiology, Monaldi Hospital—Azienda Ospedaliera di Rilievo Nazionale (AORN) dei Colli, 80131 Naples, Italy
6. Department of Emergency Medicine, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
7. Unit of Radiology, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy
8. Department of Medical and Surgical Sciences, Institute of Internal Medicine, University of Foggia, 71122 Foggia, Italy
9. Pneumology and Respiratory Semi-intensive Care Unit, Ostuni Hospital, 72017 Ostuni, Italy
10. Respiratory Diseases and Respiratory Rehabilitation, “Teresa Masselli Mascia” Hospital, 71016 San Severo, Italy
11. Unit of Interventional and Diagnostic Ultrasound of Internal Medicine, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy