1. Division of Pediatric Neurology, Connecticut Children's Medical Center University of Connecticut School of Medicine Farmington Connecticut USA
2. Department of Neurology Johns Hopkins University School of Medicine Baltimore Maryland USA
3. Department of Neuropediatrics, Developmental Neurology and Social Pediatrics, LMU Campus Innenstadt University of Munich Munich Germany
4. Department of Neurology UCLA Clinical and Translational Research Center Los Angeles California USA
5. Pediatric Neurology, Gillette Children's Specialty Healthcare St Paul Minnesota USA
6. Department of Neurology Seattle Children's Research Institute Seattle Washington USA
7. Department of Pediatrics, Neurology and Neurotherapeutics UT Southwestern Medical Center Dallas Texas USA
8. Biogen Cambridge Massachusetts USA
9. Biogen Maidenhead UK