[1] Gaston Berger Univ, Neurol, Hlth Sci Training & Res Unit, St Louis, Senegal
[2] Thies Univ, Neurol, Thies, Senegal
[3] Univ Cheikh Anta Diop, Pikine Hosp, Neurol, Dakar, Senegal
[4] Pikine Hosp, Neurol, Dakar, Senegal
[5] Univ Cheikh Anta Diop, Fac Med, Neurol, Dakar, Senegal
[6] Univ Cheikh Anta Diop, Neurosci, Dakar, Senegal