1. Department of Clinical Sciences, Section of Rheumatology; Lund University; Lund Sweden
2. School of Business, Engineering and Science, Rydberg Laboratory of Applied Science; Halmstad University; Halmstad Sweden
3. Spenshult Research and Development Center; Halmstad Sweden
4. Primary Health Care Unit, Department of Public Health and Community Medicine, Institute of Medicine, The Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
5. Department of Nursing and Midwifery; University of the West of England; Bristol UK