1 Department of Neurology, Nerve-Muscle Unit (National reference center 'maladies neuromusculaires du grand sud-ouest'), University Hospital of Bordeaux (groupe hospitalier Pellegrin), Place Amélie Raba-Léon, 33000 Bordeaux, France.
2 Department of Neurology, University Hospital Mustapha Bacha, Algiers, Algeria; Laboratoire de Neurosciences, University of Algiers 1, Algiers, Algeria.
3 Department of Neurology (National reference center 'neuropathies périphériques rares'), University Hospital Dupuytren, 2 avenue Martin Luther King, 87042 Limoges, France.
4 Department of Medical Genetics (National reference center 'maladies neuromusculaires du grand sud-ouest'), University Hospital of Bordeaux (groupe hospitalier Pellegrin), place Amélie Raba-Léon, 33076 Bordeaux, France; MRGM Laboratory, INSERM U1211, University of Bordeaux, place Amélie Raba-Léon, 33076 Bordeaux, France.
5 Department of Neurology (National reference center 'neuropathies périphériques rares'), University Hospital Dupuytren, 2 avenue Martin Luther King, 87042 Limoges, France. Electronic address: jean-michel.vallat@unilim.fr.