1. Department of Neurology; University Hospital Gui de Chauliac; Montpellier France
2. EA7402 Institut Universitaire de Recherche Clinique, and Laboratoire de Génétique Moléculaire, University Hospital; Montpellier France
3. Department of Neurology; Pitié-Salpêtrière University Hospital; Paris France
4. Department of Neurology; Strasbourg University Hospital; Strasbourg France
5. Department of Genetics; Pitié-Salpêtrière University Hospital; Paris France
6. Peripheral Nervous System, Muscle and ALS, Neuromuscular & ALS Specialized Center; Nice University Hospital, Pasteur 2; Nice France
7. Department of Medical Genetics; Sainte Musse Hospital; Toulon France
8. Department of Paediatrics; University Hospital Gui de Chauliac; Montpellier France
9. Department of Physical Medicine and Rehabilitation and Department of Paediatric Neurology; CHU de Saint Etienne France
10. Department of Neurology; Sainte Musse Hospital; Toulon France
11. Department of Neurology; University Hospital Roger Salengro; Lille France
12. CHU Lille, UMR-S 1172 - Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer; University of Lille, Inserm; Lille France
13. Centre de Référence des Maladies Neuro-musculaires et Neurologiques Rares du CHU de la Réunion; France
14. Department of Medical Genetics and Reference Centre for Neurological and Neuromuscular Diseases; Croix-Rousse Hospital; Lyon France
15. INSERM UMR 1141 Robert Debré Hospital and Denis Diderot University Paris 7; Paris France
16. Department of Neurology; La Timone University Hospital; Marseille France
17. Department of Medical Genetics, Pellegrin University Hospital, and laboratoire Maladies Rares Génétique et Métabolisme (MRGM), INSERM U1211; Université Bordeaux; Bordeaux France
18. Department of Clinical Genetics; Purpan University Hospital; Toulouse France