1. Department of Dermatology and Allergy; Herlev and Gentofte Hospital; University of Copenhagen; Hellerup Denmark
2. Copenhagen Research Group for Inflammatory Skin (CORGIS); Herlev and Gentofte Hospital; Hellerup Denmark
3. School of Health and Medical Science; Graduate Programme in Public Health and Epidemiology; University of Copenhagen; Copenhagen Denmark
4. National Allergy Research Centre; Herlev and Gentofte Hospital; Hellerup Denmark
5. Departments of Dermatology, Preventive Medicine, and Medical Social Sciences; Feinberg School of Medicine; Northwestern University; Chicago IL USA