1. Department of Dermatology and Allergy University of Copenhagen HellerupDenmark
2. Copenhagen Research Group for Inflammatory Skin (CORGIS) Herlev and Gentofte Hospital University of Copenhagen Hellerup Denmark
3. Department of Dermatology CHU Rennes F35000RennesFrance
4. University of Rennes, EA 7449 REPERES ‘Pharmacoepidemiology and Health Services Research' F35000RennesFrance
5. Formerly Sanofi Genzyme Cambridge MA USA
6. Formerly Regeneron Pharmaceuticals Tarrytown NY USA
7. Department of Dermatology and Venereology Bispebjerg HospitalUniversity of Copenhagen Copenhagen Denmark