1. Dept. Physiology Laboratory of Systems Neuroscience School of Medicine National Autonomous University of Mexico Mexico City Mexico
2. MD–PhD Program (PECEM) Faculty of Medicine National Autonomous University of Mexico Mexico City Mexico
3. Metabolic Physiology and Ultrastructural Biology Laboratory VA San Diego Healthcare System University California San Diego San Diego CA USA
4. Section on Molecular Neuroscience National Institute of Mental Health, Intramural Research Program National Institutes of Health Bethesda MD USA