1Department of Medical Genetics, CHU Nantes, France
2Paris V University, Institut Cochin, INSERM U1016, Paris, France
3Department of Genetics, CHU Clocheville, Tours, France
4Department of Pediatry, Hôpital Yves Le Foll, Saint Brieuc, France
5Department of Neuropathology, CHU Brest, Brest, France
6Department of Medical Genetics, CLAD Ouest, CHU Rennes, Rennes, France
7Department of Molecular Genetics, CHU Pontchaillou, Rennes, France
8Department of Neurology, CHU Angers, Angers, France
9Institute of Myology, CHU Hôpital Pitié-Salpétrière, Paris, France
10Department of Neuropediatry, CHU Pellerin, Bordeaux, France
11Department of Genetics, CHU Morvan, Brest, France
12Department of Genetics, CH Vannes, Vannes, France
13Department of Pediatry, CH Côte Basque, Bayonne, France
14APHP, Centre de référence maladies neuromusculaires, Hendaye, France
15Department of Genetics, CHU Jeanne de Flandres, Lille, France
16Department of Genetics, CHU Dijon, Dijon, France
17APHP, Department of Neuromuscular disorders, CHU Salpétrière, Paris, France
18APHP, Department of Neuropediatry, CHU Trousseau, Paris, France
19APHP, Department of Histology, INSERM U841, CHU Mondor, Creteil, France
20Department of Pediatry, CHU Strasbourg, Strasbourg, France
21APHP, Department of Neuropediatry, CHU Necker, Paris, France