1. Hamburg Centre for Pediatric and Adolescent Rheumatology, Schön Klinik Hamburg Eilbek, Hamburg, Germany
2. University of Pittsburgh and University of Pittsburgh Medical Center Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA
3. Department of Pediatric Rheumatology. Hospital Sant Joan de Déu and Universitat de Barcelona, Barcelona, Spain
4. Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, USA
5. Unit of Pediatric Rheumatology, Tűzoltó Street Department, Pediatric Centre, Semmelweis University, Budapest, Hungary
6. Laboratory of Experimental Rheumatology and Academic Division of Clinical Rheumatology-Department of Internal Medicine and Specialties, University of Genoa and IRCCS San Martino Polyclinic Hospital, Genoa, Italy
7. UCL Division of Medicine, Royal Free London NHS Foundation Trust, London, UK
8. Scleroderma & Raynaud’s United Kindgom (SRUK) (Research Subcommittee, Patient Research Partner), FESCA, London, UK
9. Children’s pulmonology, Asklepios Klinik Nord – Heidberg, Hamburg, Germany
10. Hackensack University Medical Center, Hackensack, NJ, USA
11. Great Ormond Street Hospital, London, UK
12. Pediatric Rheumatology Unit, Meyer Children’s Hospital IRCCS, Florence, Italy
13. Department of Dermatology and Venereology, University Hospital Cologne, Cologne, Germany
14. UCL Institute of Immunity and Transplantation, Royal Free London NHS Foundation Trust, London, UK
15. Alder Hey Children’s Foundation NHS Trust, Liverpool, UK
16. Department of Internal Medicine, Ghent University, Ghent, Belgium
17. Department of Rheumatology, Ghent University Hospital, Ghent, Belgium
18. Unit for Molecular Immunology and Inflammation, VIB Inflammation Research Center (IRC), Ghent, Belgium and ERN ReCONNET
19. University of California, Los Angeles, CA, USA
20. University of Washington, Seattle, WA, USA
21. University of Florence, Florence, Italy
22. Division of Rheumatology Fellow, Geffen School of Medicine at the University of California in Los Angeles, Los Angeles, CA, USA