1 From the Department of Neurology (R.H.H.), Perelman School of Medicine, University of Pennsylvania, Philadelphia; and Departments of Neurology and Emergency Medicine (H.E.H.), Oregon Health & Science University, Portland.
2 From the Department of Neurology (R.H.H.), Perelman School of Medicine, University of Pennsylvania, Philadelphia; and Departments of Neurology and Emergency Medicine (H.E.H.), Oregon Health & Science University, Portland. hinson@ohsu.edu.