1. Transylvania University Brasov Brasov Romania
2. Department of Clinical Epidemiology and Public Health Iberoamerican Cochrane Centre Biomedical Research Institute Sant Pau (IIB Sant Pau) Barcelona Spain
3. CIBER de Epidemiología y Salud Pública (CIBERESP) Madrid Spain
4. Furtwangen University Furtwangen im Schwarzwald Germany
5. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
6. Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
7. Personalized Medicine Asthma & Allergy Clinic IRCCS Research Hospital Humanitas University Milan Italy
8. School of Medicine University CEU San Pablo Madrid Spain
9. Department of Medical Sciences and Public Health University of Cagliari Cagliari Italy
10. Translational Medicine Program Research Institute Hospital for Sick Children Toronto ON Canada
11. Department of Immunology University of Toronto Toronto ON Canada
12. Division of Immunology and Allergy Food Allergy and Anaphylaxis Program Departments of Paediatrics and Immunology The Hospital for Sick Children University of Toronto Toronto ON Canada
13. Department of Otorhinolaryngology Academic Medical Center (AMC) University of Amsterdam Amsterdam The Netherlands
14. Medical School University of Nicosia Nicosia Cyprus
15. Department of Otorhinolaryngology Upper Airway Research Laboratory (URL) Ghent University Hospital Ghent Belgium
16. Department of ENT Guy's Hospital London UK
17. Zentrum für Rhinologie und Allergologie Wiesbaden Germany
18. Royal National Throat, Nose and Ear Hospital UCLH London UK
19. Department of Otolaryngology ‐ Head and Neck Surgery Johns Hopkins University Baltimore MD USA
20. Departments of Medicine and Microbiology APC Microbiome Ireland University College Cork Cork Ireland
21. European Federation of Allergy and Airways Diseases Patients' Associations (EFA) Brussels Belgium
22. Department of Otorhinolaryngology, Head and Neck Surgery Section of Rhinology and Allergy University Hospital Marburg Philipps‐Universität Marburg Marburg Germany
23. Centre for Inflammation Research, Child Life and Health The University of Edinburgh Edinburgh UK
24. Department of Otorhinolaryngology, Head and Neck Surgery University Hospital Zurich University of Zurich Zurich Switzerland
25. Department of Otolaryngology Yong Loo Lin School of Medicine National University of Singapore Singapore Singapore
26. Department of Otolaryngology–Head and Neck Surgery Beijing TongRen Hospital Capital Medical University Beijing China
27. Department of Allergy Beijing TongRen Hospital Capital Medical University Beijing China
28. Beijing Key Laboratory of Nasal Diseases Beijing Institute of Otolaryngology Beijing China
29. Department of Biochemistry and Molecular Biology Chemistry School Complutense University of Madrid Madrid Spain
30. Department of Clinical Immunology University of Wroclaw Wroclaw Poland
31. “ALL‐MED” Medical Research Institute Wroclaw Poland