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