1. Department of Neurology Children's National Hospital Washington DC USA
2. Department of Neurology George Washington University School of Medicine & Health Sciences Washington DC USA
3. Department of Pediatrics Prisma Health Greenville South Carolina USA
4. University of South Carolina School of Medicine Greenville Greenville South Carolina USA
5. Division of Neurology Cincinnati Children's Hospital Medical Center Cincinnati Ohio USA
6. Department of Pediatrics University of Cincinnati College of Medicine Cincinnati Ohio USA
7. Department of Neurology University of Cincinnati Gardner Neuroscience Institute Cincinnati Ohio USA
8. Institute of Neurogenetics University of Lübeck Lübeck Germany
9. Department of Neurology University of Lübeck Lübeck Germany