1. Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet
2. Rheumatology, Theme Inflammation and Ageing, Karolinska University Hospital
3. Rheumatology Division, Department of Medicine Solna, Karolinska Institutet , Stockholm
4. Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg , Göteborg
5. Department of Biomedical and Clinical Sciences, Linköping University , Linköping
6. Rheumatology, Department of Clinical Sciences, Malmö, Lund University , Malmö, Sweden