1. Allergy and Pneumology Outpatient Clinic, 24125 Bergamo, Italy
2. Departmental Unit of Allergology, Immunology & Pulmonary Diseases, Fondazione Poliambulanza, 25100 Brescia, Italy
3. Department of Clinical and Experimental Medicine, Section of Pediatrics, University of Pisa, 56126 Pisa, Italy
4. Department of Medical Sciences Graduate School of Allergology and Clinical Immunology, University of Turin, 10135 Turin, Italy
5. Center for Medical Sciences (CISMed) and Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, 38122 Trento, Italy; Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy