1. Division of Rheumatology Department of Medicine Solna Karolinska Institutet Karolinska University Hospital Stockholm Sweden
2. Division of Clinical Epidemiology Department of Medicine Solna Karolinska Institutet Karolinska University Hospital Stockholm Sweden
3. Department of Medical Sciences Rheumatology and Science for Life Laboratory Uppsala University Uppsala Sweden
4. Department of Public Health and Clinical Medicine Rheumatology Umeå University Umeå Sweden
5. Department of Rheumatology Faculty of Medicine and Health Örebro University Örebro Sweden
6. Division of Rheumatology Department of Clinical Experimental Medicine Linköping University Linköping Sweden
7. Department of Clinical Sciences, Malmö Rheumatology Lund University Malmö Sweden