1. Multiple Sclerosis Comprehensive Care Center, Department of Neurology, NYU Langone Health, New York, NY, USA
2. Pediatric Multiple Sclerosis Center, University of California San Francisco, San Francisco, CA, USA
3. Data Coordinating and Analysis Center, The University of Utah, Salt Lake City, UT, USA
4. Center for Pediatric-Onset Demyelinating Disease, The University of Alabama at Birmingham, Birmingham, AL, USA
5. Pediatric Multiple Sclerosis Center, University of California San Diego, San Diego, CA, USA
6. Pediatric Multiple Sclerosis and Related Disorders Program at Boston Children’s Hospital, Boston, MA, USA
7. Washington University in St. Louis, St. Louis, MO, USA
8. Rocky Mountain Multiple Sclerosis Center, Children’s Hospital Colorado, University of Colorado Denver, Aurora, CO, USA
9. Jacobs Pediatric Multiple Sclerosis Center, State University of New York at Buffalo, Buffalo, NY, USA
10. Mayo Clinic Pediatric Multiple Sclerosis Center, Mayo Clinic, Rochester, MN, USA
11. The Blue Bird Circle Clinic for Multiple Sclerosis, Texas Children’s Hospital, Baylor College of Medicine, Houston, TX, USA
12. Pediatric Multiple Sclerosis Center, Loma Linda University Children’s Hospital, Loma Linda, CA, USA
13. Cleveland Clinic Mellen Center for Multiple Sclerosis, Cleveland Clinic, Cleveland, OH, USA
14. Partners Pediatric Multiple Sclerosis Center, Massachusetts General Hospital, Boston, MA, USA