1 Department of Neurology, CHU Nîmes, Univ Montpellier, Nîmes, France. Electronic address: ioanamaria.ion@chu-nimes.fr.
2 Department of Neurology, CHU Nîmes, Univ Montpellier, Nîmes, France. Electronic address: dorap_2002@yahoo.co.uk.
3 Department of Interventional Neuroradiology, Service of Radiology, CH Perpignan, Perpignan, France. Electronic address: geoffroy.farouil@ch-perpignan.fr.
4 Department of Neurology, CH Perpignan, Perpignan, France. Electronic address: denis.sablot@ch-perpignan.fr.