1. David Hide Asthma and Allergy Research Centre; St Mary's Hospital; Isle of Wight UK
2. NIHR Respiratory Biomedical Research Unit; University Hospital Southampton NHS Foundation Trust; Southampton UK
3. Clinical and Experimental Sciences Academic Unit; Faculty of Medicine; University of Southampton; Southampton UK
4. Department of Infection and Immunity; Luxembourg Institute of Health (LIH); Esch-sur-Alzette, Luxembourg and Department of Dermatology and Allergy Center; Odense Research Center for Anaphylaxis; University of Southern Denmark; Odense Denmark
5. Department of Immunopathology; Sanquin Research; Amsterdam and Landsteiner Laboratory; Academic Medical Center; University of Amsterdam; Amsterdam The Netherlands
6. Anaphylaxis Campaign; Farnborough UK
7. Department of Paediatrics; Imperial College London; London UK
8. Department of Paediatrics and Child Health; School of Applied Psychology; University College Cork; Cork Ireland
9. Department of Child and Adolescent; University Hospitals of Geneva; Geneva Switzerland
10. Careggi Hospital; Florence Italy
11. Dermatology Centre; Norfolk & Norwich University Hospital; Norwich UK
12. University Hospitals Leuven; Leuven Belgium
13. Paediatrics and Child Health; University College Cork; Cork Ireland
14. Departments of Immunology and Dermatology/Allergology; University Medical Center Utrecht; Utrecht The Netherlands
15. Department of Pediatrics; University of Padua; Padova Italy
16. Centre for Pediatrics and Child Health; Institute of Human Development; University of Manchester; Manchester UK
17. Allergy Department; 2nd Pediatric Clinic; University of Athens; Athens Greece
18. Division of Asthma, Allergy & Lung Biology; Department of Paediatric Allergy; King's College London; London UK
19. MRC & Asthma UK Centre in Allergic Mechanisms of Asthma; London UK
20. Immunoallergology Department; Coimbra University Hospital; Coimbra Portugal
21. German Allergy and Asthma Association (Deutscher Allergie- und Asthmabund (DAAB)); Mönchengladbach Germany