1. Department of Medicine, Division of Rheumatology, Karolinska Institutet , Stockholm, Sweden
2. Center for Molecular Medicine, Division for Rheumatology, Department of Medicine, Solna, Karolinska Institutet , Stockholm, Sweden
3. Department of Gastro, Dermatology and Rheumatology, Theme Inflammation and Aging, Karolinska University Hospital , Stockholm, Sweden
4. Department of Medicine, Division of Rheumatology, Structural Genomics Consortium, Karolinska Institutet , Stockholm, Sweden
5. Department of Biomedical and Clinical Sciences, Division of Neurology, Faculty of Medicine and Health Sciences, Linkoping University , Linkoping, Sweden
6. Department of Clinical Science, Broegelmanns Research Laboratory, University of Bergen, Bergen , Norway