1. From the Department of Neuro-Ophthalmology, Harvard Medical School, Massachusetts Eye and Ear Infirmary, Boston (A.S.S.T.); Department of Neurology, University of Illinois College of Medicine in Peoria (J.C.K.); Department of Neurology, University of Michigan Health System, Ann Arbor (K.A.K.); and Department of Neurology (D.R.G., D.S.Z., D.E.N.-T.) and Department of Neurology, The Johns Hopkins Hospital Comprehensive Stroke Center (V.C.U.), Johns Hopkins University School of Medicine, Baltimore, MD.