[1] New Children’s Hospital,Department of Pediatrics
[2] Pediatric Research Center,Department of Clinical and Molecular Medicine
[3] University of Helsinki and Helsinki University Hospital,Department of Women’s and Children’s Health
[4] Levanger Hospital,Department of Pediatrics
[5] Nord-Trøndelag Hospital Trust,Department of Pediatrics
[6] NTNU - Norwegian University of Science and Technology,Department of Pediatrics
[7] Uppsala University,Department of Pediatrics
[8] Institute of Clinical Sciences,Department of Clinical Medicine
[9] Sahlgrenska Academy,Department of Pediatrics
[10] University of Gothenburg,undefined
[11] Aarhus University Hospital,undefined
[12] Kuopio University Hospital,undefined
[13] Primary Health Care Unit Kuopio,undefined
[14] Folkhälsan Research Center,undefined
[15] Rigshospitalet Copenhagen University Hospital,undefined
[16] University Hospital of North Norway and Pediatric Research Group,undefined
[17] UIT the Arctic University of Norway,undefined
[18] Helsinki University Central Hospital,undefined
[19] HUS Inflammation Center,undefined
[20] Rheumatology and University of Helsinki,undefined
[21] St. Olavs University Hospital,undefined