1 Department of Chest Diseases, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy. Electronic address: [email protected].
2 Department of Chest Diseases, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy.
3 Division of Pneumology, Spedali Civili di Brescia, Brescia, Italy.
4 Allergy and Immunology Unit, Fondazione "Salvatore Maugeri", Institute of Research and Care, Scientific Institute of Pavia, Italy.