1. The Center for Gene Therapy Nationwide Children's Hospital Columbus Ohio USA
2. Department of Neurology The Ohio State University Columbus Ohio USA
3. Department of Pediatrics The Ohio State University Columbus Ohio USA
4. Department of Pathology The University of Iowa Iowa City Iowa USA
5. Depatment of Pediatrics The University of Iowa Iowa City Iowa USA
6. Department of Neurology Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
7. Department of Neurology Nemours Children's Hospital Orlando Florida USA
8. Department of Neurology Washington University Saint Louis Missouri USA
9. Department of Neurology Johns Hopkins University Baltimore Maryland USA
10. Department of Neurology Columbia University New York New York USA
11. Department of Neurology University of New Mexico Health Sciences Center Albuquerque New Mexico USA
12. Department of Pediatric Neurology Mercy Hospitals Springfield Missouri USA
13. Neuromuscular Research Center Tampere University Hospital and University of Tampere Tampere Finland
14. Division of Clinical Neurosciences Turku University Hospital and University of Turku Turku Finland
15. Department of Neurology University of Minnesota Medical Center Minneapolis Minnesota USA
16. Department of Neurology University of Kansas Kansas City Kansas USA
17. Department of Pediatrics The University of Utah School of Medicine Salt Lake City Utah USA
18. Department of Human Genetics The University of Utah School of Medicine Salt Lake City Utah USA