1. Allergologie und Immunologie, Klinik für Dermatologie, Venerologie und Allergologie, Campus Charité Mitte Universitätsmedizin Berlin Germany
2. Department of Dermatology and Venereology, Bispebjerg Hospital University of Copenhagen Denmark
3. Klinik für Hautkrankheiten Jena University Hospital Germany
4. Department of Dermatology University Allergy Center (UAC), University Hospital Carl Gustav Carus Germany
5. Department of Dermatology University of Arkansas for Medical Sciences Little Rock Arkansas USA
6. Oregon Medical Research Center Portland OR USA
7. LEO Pharma A/S Ballerup Denmark