Affiliations

• ¹ From the Department of Neurology (R.L.), Johns Hopkins University School of Medicine, Baltimore; and National Institute of Neurological Disorders and Stroke (R.L., M.L.), NIH, Bethesda, MD. rleigh4@jhu.edu.
• ² From the Department of Neurology (R.L.), Johns Hopkins University School of Medicine, Baltimore; and National Institute of Neurological Disorders and Stroke (R.L., M.L.), NIH, Bethesda, MD.