1. Children’s Hospital at Montefiore and Albert Einstein College of Medicine New York New York United States
2. Boston Children’s Hospital and Harvard Medical School Boston Massachusetts United States
3. Seattle Children’s Hospital Seattle Washington United States
4. Nationwide Children’s Hospital and Ohio State University Columbus Ohio United States
5. Children’s Hospital of Philadelphia and University of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania United States
6. University of Toronto and The Hospital for Sick Children Toronto Ontario Canada
7. New York University Grossman School of Medicine and Hassenfeld Children’s Hospital New York New York United States
8. University of Alabama at Birmingham
9. American College of Rheumatology Atlanta Georgia United States
10. University of Texas Southwestern Medical Center Dallas