1. Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy, University Hospital Marburg Philipps‐Universität Marburg Marburg Germany
2. MEDCIDS – Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine University of Porto Porto Portugal
3. CINTESIS@RISE–Health Research Network, Faculty of Medicine University of Porto Porto Portugal
4. Allergy Department, 2nd Pediatric Clinic University of Athens Athens Greece
5. Center of Excellence in Asthma and Allergy Médica Sur Clinical Foundation and Hospital México City Mexico
6. Department of Pharmacotherapy and Pharmaceutical Care, Faculty of Pharmacy Medical University of Warsaw Warsaw Poland
7. Allergy Unit, Hospital Regional Universitario de Malaga, IBIMA‐Plataforma BIONAND Universidad de Malaga, RICORS de Enfermedades Inflamatorias Malaga Spain
8. Institute of Medical Statistics and Computational Biology University of Cologne Cologne Germany
9. ClinCompetence Cologne GmbH Cologne Germany
10. Department of Otolaryngology, Head and Neck Surgery Universitätsmedizin Mainz Mainz Germany
11. Center for Rhinology and Allergology Wiesbaden Germany
12. Institute of Allergology, Charité – Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin and Humboldt‐Universität zu Berlin Berlin Germany
13. Fraunhofer Institute for Translational Medicine and Pharmacology ITMP Immunology and Allergology Berlin Germany
14. Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine Charité‐Universitätsmedizin – Berlin Berlin Germany
15. Department of Botany University of Innsbruck Innsbruck Austria
16. European Aeroallergen Network (EAN) Vienna Austria
17. Department of Oto‐Rhino‐Laryngology, Klinik Hietzing Wiener Gesundheitsverbund Vienna Austria
18. Paul‐Ehrlich‐Institut Langen Germany
19. Department of Otorhinolaryngology Kuopio University Hospital and University of Eastern Finland Kuopio Finland
20. Department of Allergy, Inflammation Center Helsinki University Hospital and University of Helsinki Helsinki Finland
21. Department of Infection and Immunity Luxembourg Institute of Health Esch‐sur‐Alzette Luxembourg
22. Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis (ORCA) Odense University Hospital Odense Denmark
23. Allergy Unit Policlinico Casilino Roma Italy
24. Department of Clinical Immunology Wrocław Medical University Wroclaw Poland
25. ALL‐MED Medical Research Institute Wroclaw Poland
26. Faculty of Medicine Transylvania University of Brasov Brasov Romania
27. Department of Biomedical Sciences Humanitas University Milan Italy
28. Asthma and Allergy Unit, IRCCS Humanitas Research Hospital Milan Italy
29. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
30. Finnish Meteorological Institute (FMI) Helsinki Finland
31. National Heart and Lung Institute Imperial College London UK
32. NIHR Imperial Biomedical Research Centre London UK
33. Medical Consulting Czarlewski Levallois France
34. MASK‐air Montpellier France
35. ARIA Montpellier France