1. Pediatric Multiple Sclerosis and other Demyelinating Disease Center Washington University in St. Louis St. Louis Missouri
2. Department of Neurology UC Davis Children's Hospital Sacramento California
3. Data Coordinating and Analysis Center University of Utah Salt Lake City Utah
4. Department of Radiology Washington University in St. Louis St. Louis Missouri
5. University of Southwestern Texas Dallas Texas
6. Jacobs Pediatric Multiple Sclerosis Center State University of New York at Buffalo Buffalo New York
7. Mayo Clinic Pediatric Multiple Sclerosis Center Mayo Clinic Rochester Minnesota
8. Pediatric Multiple Sclerosis Center Loma Linda University Children's Hospital Loma Linda California
9. Lourie Center for Pediatric Multiple Sclerosis Stony Brook University Hospital New York New York
10. Depatment of Epidemiology University of California Berkeley Northern California
11. Department of Neurology University of Utah Salt Lake City Utah
12. Pediatric Multiple Sclerosis and Related Disorders Program Boston Children's Hospital Boston Massachusetts
13. Primary Children's Hospital University of Utah Salt Lake City Utah
14. Partners Pediatric Multiple Sclerosis Center Massachusetts General Hospital Boston Massachusetts
15. Center for Pediatric‐Onset Demyelinating Disease Children's Hospital of Alabama University of Alabama Birmingham Alabama
16. Children's National Medical Center Washington DC
17. Pediatric Multiple Sclerosis Center University of California San Francisco San Francisco California
18. The Blue Bird Circle Clinic for Multiple Sclerosis Texas Children's Hospital Baylor College of Medicine Houston Texas
19. Mellen Center for Multiple Sclerosis Cleveland Clinic Cleveland Ohio
20. Lurie Children's Hospital of Chicago Chicago Illinois
21. Rocky Mountain Multiple Sclerosis Center Children's Hospital Colorado University of Colorado at Denver Aurora Colorado
22. Children's Hospital of Philadelphia Philadelphia Pennsylvania
23. Pediatric Multiple Sclerosis Center New York University New York New York