1. National Allergy Research Centre, Department of Dermatology and Allergy Herlev and Gentofte Hospital, University of Copenhagen Hellerup Denmark
2. Department of Dermatology and Allergy Herlev and Gentofte Hospital, University of Copenhagen Hellerup Denmark
3. Department of Pediatric and Adolescent Medicine Herlev and Gentofte Hospital, University of Copenhagen Herlev Denmark
4. Department of Dermatology and Allergy Centre Odense University Hospital, University of Southern Denmark Odense Denmark