1. Division of Dermatology and Venereology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
2. ICON Clinical Research, Stockholm, Sweden
3. Eli Lilly, Indianapolis, Indiana
4. Division of Rheumatology, Department of Medicine Karolinska Institutet, Stockholm, Sweden
5. Optimuskliniken, Stockholm, Sweden
6. Diagnostiskt Centrum Hud, Stockholm, Sweden
7. Dermatology and Venereology Clinic, Karolinska University Hospital, Stockholm, Sweden
8. Department of Medical Sciences, Rheumatology, Uppsala University, Sweden