Institution: | 1. School of Medicine Health Policy and Practice , University of East Anglia , Norwich, UK susan.miles@uea.ac.uk;3. Department of Dermatology , Medical University of Vienna , Austria;4. Department Dermatology/Allergology , University Medical Center Utrecht , The Netherlands;5. Unidad de Alergia , Hospital de Fuenlabrada , Madrid, Spain;6. Servicio de Alergia , Hospital Clínico San Carlos , Madrid, Spain |