1. Division of Neuro and Inflammation Sciences, Department of Clinical and Experimental Medicine, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden
2. Department of Paediatrics, County Council of Östergötland, Sweden
3. Department of Clinical Immunology and Transfusion Medicine, County Council of Östergötland, Linköping, Sweden
4. Clinical Chemistry Laboratory, County Council of Östergötland, Sweden
5. Rheumatology clinic, Heart and Medicine Centre, County Council of Östergötland, Sweden