1. Department of Otorhinolaryngology Amsterdam University Medical Centres, Location AMC Amsterdam Amsterdam The Netherlands
2. European Forum for Research and Education in Allergy and Airway Diseases (EUFOREA) Brussels Belgium
3. Royal National Throat, Nose and Ear Hospital University College London Hospitals London UK
4. Upper Airways Research Laboratory University of Ghent Gent Belgium
5. Division of ENT Diseases, CLINTEC Karolinska Institute, and Department of ENT Diseases Karolinska University Hospital Stockholm Sweden
6. Department of Otorhinolaryngology, Hospital Clínic Universitat de Barcelona, IDIBAPS, CIBERES Barcelona, Catalonia Spain
7. Department of Respiratory Medicine and Allergology Lund University Lund Sweden
8. Department of Respiratory Disease University Hospital Arnaud de Villeneuve Montpellier France
9. Personalized Medicine, Asthma & Allergy - Humanitas Clinical and Research Center IRCCSRozzano (MI) Italy
10. Department of Biomedical Science Humanitas University Pieve Emanuele (MI) Italy
11. Division of Otolaryngology‐Head & Neck Surgery University of Montreal Hospital Centre (CHUM) Montreal Quebec Canada
12. Department of Clinical Pharmacy & Pharmacology and Department of General Practice UMCG, and QPS‐NL Groningen The Netherlands
13. Department of Respiratory Medicine, First Faculty of Medicine Charles University and Thomayer Hospital Prague Czech Republic
14. Department of Otolaryngology, Head & Neck Surgery Eastern Virginia Medical School Norfolk Virginia
15. Guy’s and St. Thomas’ NHS Foundation Trust London UK
16. ENT Department University Hospital of Nancy, Brabois-ILM Nancy France
17. Department of Respiratory Medicine Ghent University Hospital Gent Belgium
18. Opuscomms London UK
19. Rhinology & Endoscopic Skull Base Surgery UCLA Department of Head & Neck Surgery Los Angeles California
20. Division of Sinonasal Disorders and Allergy, Department of Otolaryngology—Head & Neck Surgery University of Pittsburgh School of Medicine Pittsburgh Pennsylvania, USA
21. Department of Microbiology, Immunology and Transplantation Allergy and Clinical Immunology Research Group Leuven Belgium
22. Division of Rhinology, Allergy, and Endoscopic Skull Base Surgery University of North Carolina at Chapel Hill Chapel Hill North Carolina
23. Department of Otorhinolaryngology‐Head and Neck Surgery University Hospitals Leuven Leuven Belgium