1. Department of Clinical Sciences Lund, Section of Rheumatology, Skåne University Hospital, Lund University, Lund, Sweden
2. Department of Clinical Sciences Lund, Section of Rheumatology, Faculty of Medicine, Lund University, Lund, Sweden
3. Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
4. Danish Hospital for Rheumatic Diseases, University Hospital of Southern Denmark, Sønderborg, Denmark
5. Spenshult Research and Development Center, Spenshult Hospital for Rheumatic Diseases, Halmstad, Sweden
6. Primary Health Care Unit, Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden