1. Department of Dermatology and Venereology; Aarhus University Hospital; Aarhus Denmark
2. Department of Dermatology; Hospital Universitario de la Princesa; Madrid Spain
3. Department of Dermatology; University Hospital Leuven; Leuven Belgium
4. Bunny Hill Primary Care Centre; County Durham and Darlington NHS Foundation Trust & Sunderland Teaching Primary Care Trust; Sunderland UK
5. Department of Dermatology; CHSJoão; Porto Portugal
6. Department of Pharmacology and Therapeutics; Faculty of Medicine; Porto University; Porto Portugal
7. 2nd Department of Dermatology; University of Athens Medical School; Attikon Hospital; Athens Greece
8. Comprehensive Centre for Inflammation Medicine; University Hospital Schleswig-Holstein; Lübeck Germany