1. Section of Allergy and Clinical ImmunologyImperial CollegeNational Heart and Lung InstituteDovehouse StreetSW3 6LYLondonUK
2. Department and INSERM U657Hôpital Arnaud de VilleneuveUniversity Hospital of MontpellierMontpellierFrance
3. Department of AllergologyErasmus MC‐University Medical CenterRotterdamThe Netherlands
4. Allergy Department and INSERM U657Hôpital Arnaud de VilleneuveUniversity Hospital of MontpellierMontpellierFrance
5. The University of EdinburghCentre for Population Health SciencesEdinburghUK
6. Department of Respiratory MedicineRoyal Sussex County HospitalBrightonUK
7. The Royal National ThroatNose and Ear HospitalLondonUK
8. Upper Airway Research Laboratory (URL)Ghent University HospitalGhentBelgium
9. Allergy ClinicNational University HospitalCopenhagenDenmark
10. Division of ImmunopathologyDepartment of Pathophysiology and Allergy ResearchCentre for PathophysiologyInfectiology & ImmunologyMedical University of ViennaViennaAustria
11. Department of Internal Medicine, ImmunologyAllergy & Respiratory DiseasesUniversity HospitalOspedali Riuniti di AnconaAnconaItaly
12. Pediatric Allergy and Pneumology UnitChildren's Hospital La FeValenciaSpain
13. Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
14. Centre de l'Asthme et des AllergiesHôpital d'enfant Armand TrousseauParisFrance
15. Department of AllergyHospital Clinico UniversitarioSantiago de CompostelaSpain
16. Department of PaediatricsRespiratory and Allergic Disease DivisionMedical University GrazGrazAustria
17. Allergy DivisionRamon & Cajal University HospitalAlcala de Henares UniversityMadridSpain
18. Department of Pathophysiology and Allergy ResearchChristian Doppler Laboratory for ImmunomodulationMedical University of ViennaViennaAustria
19. Department of Experimental PneumologyRuhr‐UniversityBochumGermany
20. Allergy and Respiratory Diseases ClinicDepartment of Internal MedicineUniversity of GenoaGenoaItaly
21. Allergy SectionDepartment of Internal MedicineHospital Universitari Vall d'HebronBarcelonaSpain
22. Department of Respiratory DiseasesAarhus University Hospital8000Aarhus, CDenmark
23. Service de Pneumologie‐AllergologieHôpital LarreyCHU de ToulouseToulouseFrance
24. Section of Allergy and Clinical ImmunologyNational Heart and Lung InstituteImperial College and Royal Brompton HospitalLondonUnited Kingdom
25. Allergy UnitChildren's HospitalKantonsspital AarauSwitzerland
26. Hospital Clínico San CarlosFacultad de Medicina‐UCMIdISSCMadridSpain
27. Research Centre for Prevention and HealthGlostrup University HospitalCopenhagenDenmark
28. Department of Clinical ImmunologyWroclaw Medical UniversityWrocławPoland
29. Allergy & Asthma Center WestendOutpatient Clinic HanfAckermann & Kleine‐TebbeBerlinGermany
30. Center for Rhinology and AllergologyWiesbadenGermany
31. Krefting Research CentreDepartment of Internal Medicine and Clinical NutritionInstitute of Medicine, Sahlgrenska AcademyUniversity of GothenburgGothenburgSweden
32. Seccion de AlergiaHospital Reina SofíaCordobaSpain
33. Institute of Medical StatisticsInformatics and Epidemiology (IMSIE)Medical FacultyUniversity at CologneCologneGermany
34. Department of PediatricsPadua General HospitalPaduaItaly
35. Pediatric Allergology and PneumologyGerman Red Cross Clinic WestendBerlinGermany
36. Department of PediatricsAllergy UnitUniversity of MessinaMessinaItaly
37. Allergy and Respiratory DiseasesUniversity of GenoaGenoaItaly
38. Department of Respiratory Medicine and AllergologySahlgrenska University HospitalGoteborgSweden
39. Allergy ServiceVerona General HospitalVeronaItaly
40. Clinical Trials CenterUniversity Hospital ZurichZurichSwitzerland
41. Suomen Terveystalo Allergy ClinicTurkuFinland
42. Division of Respiratory MedicineDepartment of MedicineKarolinska InstitutetStockholmSweden
43. Department of PulmonologyIntensive Care Medicine, Zentrum f. Innere Medizin, Klinik IUniversity Clinic RostockRostockGermany
44. Department for Pediatric Pneumology and ImmunologyCharité Medical UniversityBerlinGermany
45. UPC Research LaboratoriesAllergy Department2nd Pediatric ClinicUniversity of AthensAthensGreece