1. Pulmonology Department, Civil Hospital, 18100 Imperia, Italy
2. Pneumology Consultant, Nursing Home Latteri, 90143 Palermo, Italy
3. Pulmonology Department, AORN A. Cardarelli, 80131 Naples, Italy
4. INSTM, 50121 Florence, Italy
5. Medical Sciences, University of Hull, Hull HU6 7RX, UK
6. UOS Pneumologia, Ospedale di San Donà di Piave, Ulss 4 Veneto Orientale, 30027 San Donà di Piave, Italy