Institution: | 1. Department of Dermatology and Venereology, Aarhus University Hospital, , 8000 Aarhus C, Denmark;2. Department of Dermatology and Allergy Centre, Odense University Hospital, , 5000 Odense C, Denmark;3. Department of Dermato‐Allergology, National Allergy Research Centre, Copenhagen University Hospital, , 2900 Hellerup, Denmark |