[1] S Sebastiano Hosp, Dept CardioPulm Rehab, Correggio, RE, Italy
[2] Wolters Kluwer Health Adis Int, Milan, Italy
[3] Osp Clinicizzato SS Annunziata, UOC Pneumol, Chieti, Italy
[4] ACO San Filippo Neri, UOC Pneumol, Rome, Italy
[5] Mondo Med, Borgomanero, NO, Italy