1. The Folkhälsan Institute of Genetics and the Department of Medical Genetics; University of Helsinki, Haartman Institute; Biomedicum Helsinki Finland
2. National Heart and Lung Institute; Imperial College London; London UK
3. Institute of Biotechnology; University of Helsinki; Helsinki Finland
4. Cliniques des maladies du développement CHU Paris; Paris France
5. Division of Genetics and Genomics; The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School; Boston Massachusetts
6. Unit of Neuromuscular and Neurodegenerative Disorders; Bambino Gesu’ Children's Research Hospital; Rome Italy
7. Centre de reference de pathologie neuromusculaire; CHU Toulouse; Toulouse France
8. Service de Génétique; CHU Clémenceau; Caen France
9. Genetics, University Hospital La Miletrie; Poitiers France
10. The Department of Pediatrics; San Antonio Military Medical Center; Houston Texas
11. West of Scotland Regional Genetics Service; Glasgow UK
12. Centre de Référence de pathologie neuromusculaire Paris-Est; Groupe Hospitalier Pitié-Salpêtrière; Paris France
13. Danek Gertner Institute of Human Genetics, Sheba Medical Center; Tel Aviv University; Tel Aviv Israel
14. Department of Neurology; Boston Children's Hospital and Harvard Medical School; Boston Massachusetts
15. University Medical Centre Göttingen; Göttingen Germany
16. Glenrose Rehabilitation Hospital; University of Alberta; Alberta Canada
17. Institute of Genetic Medicine; Newcastle University, Tyne and Wear; UK
18. National Referral Center for Rare Peripheral Neuropathies; Centre Hospitalier Universitaire; Limoges France
19. Centre de Référence des Maladies Neuromusculaires Rhône-Alpes; Hôpital Femme-Mère-Enfant; Lyon France
20. Centre de Référence et de Suivi des Maladies Neuromusculaires; Hôpital Trousseau; Paris France
21. Pediatric Neurology; Catholic University; Rome Italy
22. Murdoch Children's Research Institute; Melbourne Australia
23. Pôle de la Femme, de la Mère et de l’Enfant; Centre Hospitalier Régional Universitaire Brest; Brest France
24. University of Helsinki Central Hospital; Helsinki Finland
25. Department of Molecular and Human Genetics; Baylor College of Medicine; Houston Texas
26. Hospital Británico de Buenos Aires; Buenos Aires Argentina
27. Department of Pathology; Southern General Hospital; Glasgow UK
28. Department of Neuropathology, Institute for Neurological Research; FLENI, Buenos Aires; Argentina
29. Department of Neurology; Academic Medical Center; Amsterdam The Netherlands
30. Department of Pediatrics and Pediatric Neurology; Georg August University, Göttingen; Germany
31. University Hospital Birmingham; Queen Elizabeth Hospital; Birmingham UK
32. Molecular Neurogenetics Laboratory; Centre for Medical Research, University of Western Australia; Nedlands Australia
33. PreventionGenetics; Marshfield Massachusetts
34. Laboratoire de Biochimie et Génétique Moléculaire; IBP-CHU Grenoble; Grenoble France
35. INMR, The Children's Hospital at Westmead and Sydney Medical School; University of Sydney; Sydney Australia
36. Division of Genetics; Department of Biosciences, University of Helsinki; Helsinki Finland
37. Division of Biochemistry and Biotechnology; Department of Biosciences, University of Helsinki; Finland