1. Unit of Pediatric Neurology, French Greater South-West Reference Center for Neuromuscular Diseases, Hôpital des Enfants, Toulouse University Hospital Center, Toulouse, France
2. Unit of Pediatric Neurology, French Greater South-West Reference Center for Neuromuscular Diseases, Hôpital Gui de Chauliac, Montpellier University Hospital Center, Montpellier, France.
3. Unit of Pediatric Neurology, French Greater South-West Reference Center for Neuromuscular Diseases, Hôpital des Enfants, University Hospital Center Pellegrin, Bordeaux, France
4. Unit of Pediatrics, Centre Hospitalier de Pau, Pau, France
5. Department of Neurology, Pierre Paul Riquet Hospital, University Hospital Center Purpan, Toulouse, France