1. Department of Respiratory Medicine/Allergy; Homerton University Hospital NHS Foundation Trust; London UK
2. British Society for Allergy and Clinical Immunology; London UK
3. Department of Allergy; Imperial College London and Royal Brompton Hospital; London UK
4. Allergy Clinic; Addenbrooke's Hospital; Cambridge UK
5. Department of Allergy and Immunology; Heart of England NHS Foundation Trust; Birmingham & Institute of Immunology and Immunotherapy; University of Birmingham; Birmingham UK