1. Division of Allergy, Department of Pulmonology, Allergy and Thoracic Oncology, University Hospital of Montpellier, Montpellier
2. Desbrest Institute of Epidemiology and Public Health, UMR UA11 University of Montpellier – INSERM
3. WHO Collaborating Centre on Scientific Classification Support, Montpellier, France
4. Asthma Center and Allergy Unit, University of Verona, Verona, Italy
5. Department of Paediatrics, CH Roubaix
6. Paediatric Pneumology and Allergology Unit, CHRU Lille, France
7. Department of Medicine, University of Verona, Verona, Italy