1. Institute of Genetic Medicine, Newcastle UniversityNewcastle upon Tyne United Kingdom
2. The Children's Hospital of Philadelphia Pennsylvania USA
3. Cincinnati Children's Hospital Medical Center Ohio USA
4. University of Kansas Medical Center Kansas USA
5. University of Western OntarioLondon Ontario Canada
6. Dino Ferrari Centre, Department of Neurological SciencesUniversity of MilanI.R.C.C.S. Foundation Ca' Granda, Ospedale Maggiore PoliclinicoMilan Italy
7. Washington University School of Medicine at St. LouisMissouri USA
8. University of MinnesotaMinneapolis Minnesota USA
9. Nationwide Children's Hospital and the Ohio State UniversityColumbus Ohio USA
10. University Hospitals LeuvenLeuven Belgium
11. Department of Clinical GeneticsSydney Children's Hospital Network, and Disciplines of Genetics and Paediatrics and Child Health, Faculty of Medicine University of Sydney Australia
12. Pediatric Neurology Unit, Polilcinico GemelliUniversità Cattolica Sacro CuoreRome Italy
13. The Institute of NeurologyLondon United Kingdom
14. Northwest Florida Clinical Research Group Florida USA
15. Oregon Health & Science University and Shriners Hospital for Children Oregon USA
16. Royal Children's Hospital, Murdoch Childrens Research Institute and University of MelbourneParkville Victoria Australia
17. Department of PediatricsThe University of GothenburgGothenburg Sweden
18. Institut de Myologie, University Pierre et Marie Curie Paris 6UM 76, INSERM U 974, CNRS UMR 7215Paris France
19. University of IowaIowa USA
20. University of PennsylvaniaPennsylvania USA
21. UC Davis Children's Hospital, Lawrence J. Ellison Ambulatory Care Center Physical Medicine & Rehabilitation4860 Y St., Suite 1700, Sacramento California95817 USA
22. OrthoCare InnovationsMountlake Terrace Washington USA
23. University of Utah School of MedicineSalt Lake City Utah USA
24. PTC TherapeuticsSouth Plainfield New Jersey USA