1. Allergy and Respiratory Diseases, IRCCS Policlinico San Martino, University of Genoa, 16132 Genoa, Italy
2. Department of Internal Medicine (DIMI), University of Genoa, 16132 Genoa, Italy
3. SCDU Immunologia e Allergologia, AO Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy
4. Respiratory Medicine Unit, ASST—“Spedali Civili” of Brescia, Piazzale Spedali Civili 1, 25123 Brescia, Italy
5. Department of Medicine, University of Verona, 37134 Verona, Italy
6. ENT Department, IRCCS Policlinico San Martino, University of Genoa, 16132 Genoa, Italy
7. Departmental Unit of Allergology, Immunology & Pulmonary Diseases, Fondazione Poliambulanza, 25124 Brescia, Italy
8. Department of Respiratory Diseases, S. Corona Hospital, ASL2, 17027 Pietra Ligure, Italy
9. UO Allergology and Clinical Immunology, ASST Mantova, 46100 Mantova, Italy
10. Department of Clinical and Biological Science, University of Torino, 10043 Orbassano, Italy
11. Department of Rehabilitation Pulmonology, Hospital Ge-Arenzano, ASL3, 16149 Genoa, Italy
12. Department of Pneumologiy, Hospital Sarzana (SP), 19125 La Spezia, Italy
13. Department of Pneumologiy, Hospital Imperia, 18100 Imperia, Italy
14. Department of di Medical and Surgical Science, Fondation Universitary Policlinic A. Gemelli IRCCS, University Cattolica Sacro Cuore, 20123 Rome, Italy
15. Department of Surgery, Medicine, Molecular Biology and Critical Care, University of Pisa, 56126 Pisa, Italy
16. Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20122 Milan, Italy
17. Respiratory Unit and Adult Cystic Fibrosis Center, Internal Medicine Department, Fondation IRCCS Ca’ Granda-Ospedale Maggiore Policlinico, 20122 Milan, Italy
18. Unit of Personalized Medicine, Asthma and Allergy, IRCCS Humanitas Clinical and Research Hospital, 20089 Rozzano, Italy
19. Department of Biomedical Sciences, Humanitas University, 20072 Pieve Emanuele, Italy