1. Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
2. Department of Allergology Clinica San Carlo Paderno Dugnano (MI) Italy
3. Department of Allergy and Clinical Immunology, Clinica Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), RETIC de Asma Reacciones adversas y Alérgicas (ARADYAL) Pamplona Spain
4. Department of Dermatology Hospital del Mar, IMIM, Universitat Autònoma Barcelona Barcelona Spain
5. Guy's Hospital London UK
6. Department of Dermatology and Allergology, University Medical Center Giessen and Marburg Justus‐Liebig University Gießen Gießen Germany
7. Allergy Research Group, Medical Center University of Freiburg Freiburg Germany
8. Department of Allergy and Clinical Immunology 424 General Military Training Hospital Thessaloniki Greece
9. Department of Human Medicine and Health Sciences, University Clinic of Dermatology and Allergy University of Oldenburg Oldenburg Germany
10. RefLab ApS Copenhagen Denmark
11. Odense Research Center of Anaphylaxis, ORCA Odense Denmark
12. Department of Dermatology University Medical Center Mainz Mainz Germany
13. Bioagilytix Europe GmbH Hamburg Germany
14. Institute of Immunology University of Kiel Kiel Germany
15. Division of Allergy, Immunology and Rheumatology, Department of Pediatrics David Geffen School of Medicine at UCLA Los Angeles California USA
16. Department of Dermatology and Allergy Centre Odense University Hospital, University of Southern Denmark Odense Denmark
17. Servicio de Alergia Instituto de Investigación Sanitaria (IIS)‐ Hospital Universitario de la Princesa Madrid Spain
18. Department of Dermatology Medical University of Vienna Vienna Austria
19. Departments of Immunology and Dermatology/Allergology University Medical Center Utrecht Utrecht The Netherlands
20. Allergy Unit, 2nd Department of Dermatology and Venereology, Medical School National and Kapodistrian University of AthensAttikon” University Hospital Athens Greece
21. Department of Dermatology Norfolk and Norwich University Hospital Norwich UK
22. Allergy Unit, Department of Dermatology University Hospital Zürich Switzerland
23. Christine Kühne Center for Allergy Research and Education CK‐CARE Davos Switzerland
24. Division of Allergy and Clinical Immunology University of Toronto Toronto Ontario Canada
25. Faculty of Medicine, Bnai‐Zion Medical Center Technion Haifa Israel