1. Stroke Clinic; National Institute of Neurology and Neurosurgery Manuel Velasco Suárez; México City (DF) México
2. National Institute of Nutrition and Medical Sciences “Salvador Zubiran”; México City México
3. Facultad de Medicina of the Universidad Autónoma de Guadalajara, Guadalajara; México
4. Department of Neurology and Neurosurgery; Hospital civil de Guadalajara Fray Antonio Alcalde; México
5. Universidad del Valle de México; Querétaro México