1. Allergy & Respiratory Research Group; Centre for Population Health Sciences; The University of Edinburgh; Edinburgh UK
2. Department of Pediatric Pulmonology and Pediatric Allergy; GRIAC Research Institute; University of Groningen; University Medical Center Groningen; Groningen the Netherlands
3. Department of General Practice; GRIAC Research Institute; University of Groningen; University Medical Centre Groningen; Groningen the Netherlands
4. St. George's University; Cranmer Terrace; London UK
5. Padua General University Hospital; Padua Italy
6. Odense University Hospital; Odense C Denmark
7. Department of Pathophysiology and Allergy Research; Medical University of Vienna; Vienna Austria
8. Department of Paediatrics and Child Health; University College; Cork Ireland
9. The Anaphylaxis Campaign; Farnborough Hampshire UK
10. Department of Internal Medicine; Section Allergology; ErasmusMC; Rotterdam the Netherlands
11. David Hide Asthma and Allergy Research Centre; St Mary's Hospital; Newport Isle of Wight
12. NIHR Southampton Respiratory Biomedical Research Unit; University of Southampton and University Hospital Southampton NHS Foundation Trust
13. Human Development and Health Academic Unit; Faculty of Medicine; University of Southampton; Southampton UK
14. Division of General Internal Medicine and Primary Care; Brigham and Women's Hospital/Harvard Medical School; Boston MA USA