1. Enhance Reviews Ltd; Wantage UK
2. Public Health Epidemiology and Biostatistics; School of Health and Population Sciences; University of Birmingham; Birmingham UK
3. Allergy & Respiratory Research Group; Centre for Population Health Sciences; The University of Edinburgh; Edinburgh UK
4. Department of Pediatrics; Center for Food Allergy Diagnosis and Treatment, Veneto Region; University of Padua; Padua Italy
5. Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
6. Department of Pathophysiology and Allergy Research; Medical University of Vienna; Vienna Austria
7. David Hide Asthma and Allergy Research Centre; St Mary's Hospital; Newport Isle of Wight UK
8. NIHR Southampton Respiratory Biomedical Research Unit; University of Southampton and University Hospital Southampton NHS Foundation Trust; Southampton UK
9. Human Development and Health Academic Unit; Faculty of Medicine; University of Southampton; Southampton UK
10. Hans Christian Andersen Children's Hospital; Odense University Hospital; Odense Denmark
11. Laboratory of Medical Allergology; Allergy Clinic; Copenhagen University Hospital Gentofte; Hellerup Denmark
12. Department of Experimental Immunology; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
13. Department of Otorhinolaryngology; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
14. Department of Pediatric Respiratory Medicine and Allergy; Academic Medical Center; Emma Children's Hospital; Amsterdam the Netherlands
15. Division of General Internal Medicine and Primary Care; Brigham and Women's Hospital/Harvard Medical School; Boston MA USA