1. Child and Adolescent Habilitation, Skåne University Hospital, Malmö, Sweden
2. Department of Clinical Sciences, Section of Rheumatology, Lund University, Lund, Sweden
3. Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
4. Danish Hospital for Rheumatic Diseases, University Hospital of Southern Denmark, Sonderborg, Denmark
5. The Rydberg Laboratory for Applied Sciences, Halmstad University, Halmstad, Sweden
6. Spenshult Research and Development Centre, Halmstad, Sweden
7. Faculty of Medicine, Department of Clinical Sciences Lund, Lund University, Sweden
8. Child and Adolescent Psychiatry, Region Halland, Sweden
9. Center of Research on Welfare, Health and Sport, School of Health and Welfare, Halmstad University, Halmstad, Sweden