1. Department of Biomedical Sciences; Humanitas University; Milano Italy
2. Personalized Medicine; Asthma and Allergy Unit; Humanitas Clinical and Research Center; Humanitas University; Milano Italy
3. Institute of Biomedicine and Molecular Immunology; National Research Council of Italy; Palermo Italy
4. Paediatric National Healthcare System; Torino Italy
5. Allergy Unit; Fondazione Policlinico Gemelli, Presidio Columbus; Rome Italy
6. Respiratory Medicine and Allergy; University of Catania; Catania Italy
7. Respiratory Allergy; A.O.U. San Luigi; Orbassano Torino Italy
8. Allergy and Lung Physiology; AO Santa Croce e Carle; Cuneo Italy
9. Respiratory Medicine Unit; National Health System; ASL Città di Torino; Torino Italy
10. Allergy and Respiratory Diseases; IRCCS Policlinico San Martino; University of Genoa; Genova Italy
11. 1st Otorhinolaryngology Unit; Department of Medical and Surgical Pathology; Pisa University Hospital; Pisa Italy
12. Department of Otolaryngology; Humanitas Clinical and Research Center; Milano Italy
13. Section of Otolaryngology; Department of Basic Medical Science; Neuroscience and Sensory Organs; University of Bari; Bari Italy