1. Program in Neuroscience, F. Edward Hébert School of Medicine Uniformed Services University of the Health Sciences, Bethesda, Maryland.
2. Unit on Synapse Development and Plasticity, National Institute of Mental Health, Bethesda, Maryland.
3. Department of Neurology, F. Edward Hébert School of Medicine Uniformed Services University of the Health Sciences, Bethesda, Maryland.
4. Departments of Anatomy, Physiology and Genetics, and Psychiatry, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
5. Section on Molecular Neuroscience, Laboratory of Cellular and Molecular Regulation, National Institute of Mental Health, Bethesda, Maryland.