1. Instituto de Investigaciones Biomedicas, Universidad Nacional Autonoma de Mexico (UNAM), Cuidad Universitaria, Mexico, DF, Mexico
2. Brain Bank, National Laboratory of Experimental Services, CINVESTAV-IPN, Mexico, DF, Mexico
3. Department of Neurosciences, CINVESTAV-IPN, Mexico, DF, Mexico
4. Institute for Memory Impairments and Neurological Disorders, University of California Irvine, Irvine, CA, USA
5. Department of Neurology, University of California Irvine, Irvine, CA, USA