1. Division of Rheumatology, Department of Pediatrics, University of Cincinnati, Cincinnati Children’s Hospital Medical Center , Cincinnati, OH, USA
2. Division of Rheumatology, Department of Pediatrics, Northwestern Feinberg School of Medicine, Ann and Robert H. Lurie Children’s Hospital , Chicago, IL, USA
3. Department of Pediatrics, Nationwide Children’s Hospital , Columbus, OH, USA
4. Department of Pediatrics, Vanderbilt University Medical Center , Nashville, TN, USA
5. Division of Pediatric Rheumatology, Department of Pediatrics, Metro Health Medical System, Case Western Reserve University , Cleveland, OH, USA
6. Department of Pediatrics, Children’s Hospital Colorado , Aurora, CO, USA
7. Seattle Children’s Hospital and Research Center University of Washington , Seattle, WA, USA
8. AdventHealth Medical Group Pediatric Rheumatology and Immunology , Orlando, FL, USA
9. Department of Pediatrics, UFHealth , Gainesville, FL, USA
10. Department of Pediatrics, Scottish Rite for Children , Frisco, TX, USA
11. Department of Pediatrics, Geisinger Medical Center , Danville, PA, USA
12. Department of Pediatrics, University of Nebraska Medical Center , Omaha, NE, USA
13. CHU de Québec-Université Laval , Québec, Canada
14. Joseph M. Sanzari Children’s Hospital , Hackensack, NJ, USA
15. Division of Biostatistics and Epidemiology, Department of Pediatrics, University of Cincinnati, Cincinnati Children’s Hospital Medical Center , Cincinnati, OH, USA
16. Children’s Hospital Eastern Ontario , Ottawa, Canada