[1] La Paz Univ Hosp, IdiPAZ Hlth Res Inst, Neurol & Stroke Ctr, Madrid, Spain
[2] Gregorio Maranon Univ Hosp, Neurol, Madrid, Spain
[3] Clin Valladolid Univ Hosp, Neurol, Valladolid, Spain
[4] Albacete Univ Hosp, Neurol, Albacete, Spain
[5] La Paz Univ Hosp, IdiPAZ Hlth Res Inst, Radiol, Madrid, Spain
[6] Albacete Univ Hosp, Radiol, Albacete, Spain