[1] FLENI, Dept Neurol, Div Neurol Vasc, Buenos Aires, DF, Argentina
[2] Hosp Joan 23, Tarragona, Spain
[3] Inst Nacl Neurol, Mexico City, DF, Mexico
[4] Inst Nacl Ciencias Neurol, Dept Enfermedades Neurovasc 4, Lima, Peru
[5] Fdn Clin Valle Lili, Cali, Colombia
[6] Hosp Univ Fdn Santa Fe Bogota, Bogota, Colombia
[7] Hosp Britanico Buenos Aires, Buenos Aires, DF, Argentina
[8] FCM UNA, Hosp Clin, Unidad Ictus, San Lorenzo, Paraguay
[9] Sanatorio Arcos, Inst Neurol & Neurocirugia, Buenos Aires, DF, Argentina
[10] Univ Autonoma Nuevo Leon, Hosp Univ Jose Eleuterio Gonzalez, Monterrey, Mexico
[11] Clin Alemana Santiago, Santiago, Chile
[12] ISSSTE, Guadalajara, Jalisco, Mexico
[13] Hosp Pirovano, Serv Neurol, Unidad Stroke, Buenos Aires, DF, Argentina
[14] Inst Mexicano Seguro Social, Hosp Gen Zona 2, Dept Neurol, Aguas Calientes, Mexico
[15] Hosp Clin Porto Alegre, Hosp Moinhos Vento, Dept Neurol, Porto Alegre, RS, Brazil
[16] Hosp Padre Hurtado, SSMSO, Clin Alemana Univ Desarrollo, Fac Med, Santiago, Chile
[17] Hosp Juarez, Dept Neurol, Mexico City, DF, Mexico
[18] Hosp Nacl Edgardo Rebagliati Martins, ESSALUD, Lima, Peru
[19] Hosp Italiano Buenos Aires, Dept Neurol, Buenos Aires, DF, Argentina
[20] Hosp Dr Rafael A Calderon Guardia, San Jose, Costa Rica
[21] FLENI, Div Neurol Vasc, Buenos Aires, DF, Argentina