1. Allergy Clinic, Genoa, Italy
2. Department of Life, Health and Environmental Sciences, University of L'Aquila, Italy
3. Allergology U.O., Avezzano Hospital, ASL n. 1 Abruzzo, L'Aquila, Italy
4. Allergology U.O.C., Polyclinic Hospital San Martino - IRCCS, Genoa, Italy
5. Department of Internal Medicine, University of Genoa - Polyclinic Hospital S. Martino - IRCCS, Genoa, Italy
6. Allergy Unit, Castelli di Verbania Hospital, ASL VCO, Verbania, Italy
7. Allergy Unit, Fondazione Policlinico A. Gemelli - IRCCS, Rome, Italy
8. Department of Radiology, Polyclinic Hospital San Martino - IRCCS, Genoa, Italy
9. Internal Medicine U.O., Polyclinic Hospital San Martino - IRCCS, Genoa, Italy
10. Internal Medicine and Rheumatology U.O., Rimini Hospital, ASL Romagna, Rimini, Italy
11. Allergology S.S.V.D., ASST Spedali Civili di Brescia, Brescia, Italy
12. General and Interventistic Radiology U.O., Avezzano Hospital, ASL n. 1 Abruzzo, L'Aquila, Italy
13. Allergy Clinic, Casa di Cura Beato Palazzolo, Bergamo, Italy
14. Allergy and Clinical Immunology Unit, S. Giovanni di Dio Hospital, AUSL Toscana Centro, Florence, Italy
15. Life and health University S. Raffaele, Milan, Italy
16. Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS S. Raffaele Hospital, Milan, Italy
17. Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
18. Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Ancona, Italy