1. Department of Dermatology and Allergy; Herlev and Gentofte Hospital; University of Copenhagen; Hellerup Denmark
2. Department of Cardiology; Herlev and Gentofte Hospital; University of Copenhagen Hellerup Denmark
3. Unit of Dermatology and Venereology; Karolinska Institutet; Stockholm Sweden
4. The Danish Heart Foundation; Copenhagen Denmark
5. The National Institute of Public Health; University of Southern Denmark; Copenhagen Denmark
6. Psoriasis-Center at the Dept. of Dermatology; University Medical Center Schleswig-Holstein; Campus Kiel Germany