1. Lillebaelt Hospital, University Hospital of Southern Denmark, Middelfart, Denmark
2. Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
3. Department of Rheumatology, The Danish Hospital for Rheumatology, Sonderborg, Denmark
4. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
5. Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
6. Department of Clinical Immunology and Biochemistry, Lillebaelt Hospital, Vejle, Denmark
7. Department of Radiology, Aarhus University Hospital, Aarhus, Denmark