1. Departamentos de Farmacobiología y; Centro de Investigación y de Estudios Avanzados; Department of Pharmacobiology; Mexico City Mexico
2. General Hospital of Mexico; Mexico City Mexico
3. National Institute of Neurology and Neurosurgery; “Manuel Velasco Súrez”; Mexico City Mexico
4. Department of Physiology; School of Medicine; National Autonomous University of Mexico; Mexico City Mexico
5. Physiology; Biophysics and Neuroscience; Center of Research and Advanced Studies; Mexico City Mexico
6. del Centro de Investigación y de Estudios Avanzados; México DF México