1. Department of Paediatrics and Adolescent Medicine, General University Hospital, and 1st Faculty of Medicine, Charles University in Prague, Praha 2, Czech Republic
2. Department of Pediatric Rheumatology, Hospital Sant Joan de Déu, University of Barcelona, Barcelona, Spain
3. Department of Allergology, Rheumatology and Clinical Immunology, University of Ljubljana and Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
4. Department of Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
5. Department of Women's and Children's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
6. Infection, Immunity and Inflammation, University College London Great Ormond St Institute of Child Health, London, UK
7. 2nd Department of Paediatrics, Semmelweis University, Budapest, Hungary
8. European Network Childhood Arthritis Patient Organisation, Jerusalem, Israel
9. Hamburg Centre for Pediatric and Adolescent Rheumatology, Hamburg, Germany
10. Newcastle University, and Great North Children’s Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, UK
11. Reference Center for Autoinflammatory Diseases, Versailles Hospital– CEREMAIA, Le Chesnay, Paris, France
12. Pediatric Rheumatology and CEREMAIA, Le Kremlin-Bicêtre University Hospital, APHP, Paris-Sud University, Paris, France
13. Division of Rheumatology, Department of Pediatrics, University Hospital Tuebingen, and Autoinflammation Reference Center Tuebingen, Tuebingen, Germany
14. Pediatric Rheumatology, Helsinki Children's Hospital, Helsinki University Central Hospital, Finland
15. Pediatric Rheumatology Unit, Karolinska University Hospital, Stockholm, Sweden
16. Direzione Scientifica, Istituto Giannina Gaslini, Genoa, Italy
17. Department of Rheumatology and Clinical Immunology, German Rheumatism Research Centre Berlin, Charite University Medicine Berlin, Berlin, Germany
18. Department for Pediatric Rheumatology, Hacettepe University, Ankara, Turkey
19. Department of Pediatric Immunology and Rheumatology, Wilhelmina Kinderziekenhuis, University Medical Center Utrecht, Utrecht, Netherlands
20. French Reference Centre RAISE, Paris-Descartes University, IMAGINE Institute, Necker Hospital, Assistance Publique-Hopitaux de Paris, Paris, France
21. Clinica Pediatrica e Reumatologia and University of Genoa, Instituto Giannina Gaslini, Genoa, Italy
22. Faculty of Medicine, University of Latvia, Children University Hospital, Riga, Latvia
23. Clinica Pediatrica e Reumatologia, PRINTO Coordinating Centre, Instituto Giannina Gaslini, Genoa, Italy
24. Department of Pediatrics, Division of Pediatric Rheumatology, University Hospital Gasthuisberg, Leuven, Belgium
25. Department of Woman and Child Health, University of Padova, Padova, Italy