1. Department of Health Sciences; Lund University; Lund Sweden
2. Section of Rheumatology; Department of Medicine; Helsingborg Hospital; Helsingborg Sweden
3. The PRO-CARE Group; School of Health and Society; Kristianstad University; Kristianstad Sweden
4. School of Health and Welfare; Jönköping University; Jönköping Sweden
5. Section of Rheumatology at the Institution of Clinical Science; Lund University; Helsingborg Sweden
6. Section of Rheumatology at the Institution of Clinical Science; Lund University; Lund Sweden