1. Rheumatology Clinic, Karolinska University Hospital, Stockholm, Sweden
2. Division of Nursing, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
3. Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
4. Department of Medicine, Unit of Rheumatology, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden