1. Department of Institute of Environmental Medicine, Division of Biostatistics, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
2. Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
3. Division of Immunology and Rheumatology, Department of Medicine, Stanford School of Medicine, Stanford, CA, USA
4. Department of Epidemiology and Population Health, Stanford School of Medicine, Stanford, CA, USA
5. Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
6. Division of Imaging and Oncology, University Medical Centre Utrecht, Utrecht University, Utrecht, The Netherlands