1. The Bergen Group of Epidemiology and Biomarkers in Rheumatic Disease (BEaBiRD); Department of Rheumatology; Haukeland University Hospital; Bergen Norway
2. Department of Clinical Science; University of Bergen; Bergen Norway
3. Department of Dermatology; Haukeland University Hospital; Bergen Norway
4. Broegelmann Research Laboratory; Department of Clinical Science; University of Bergen; Bergen Norway
5. Department of Immunology and Transfusion Medicine; Haukeland University Hospital; Bergen Norway
6. Department of Medical Biochemistry; Oslo University Hospital; Radiumhospitalet; Oslo Norway
7. Department of Clinical Medicine; University of Bergen; Bergen Norway
8. Department of Neurology; Haukeland University Hospital; Bergen Norway