1. Center for Neuroscience and Regenerative Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
2. Program in Neuroscience, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
3. Department of Anatomy, Physiology, and Genetics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
4. Biostatistics Consulting Center, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
5. Department of Neurology, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
6. Section on Stroke Diagnostics and Therapeutics, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland.