Department of Neurology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America; Department of Neurosurgery, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America; Department of Ophthalmology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America. Electronic address: Elliot.frohman@austin.utexas.edu. Department of Neurology, LSUHSC School of Medicine, New Orleans, LA, United States of America. Electronic address: nville@lsuhsc.edu. Department of Neurology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America. Electronic address: Roberto.CruzSaldana@austin.utexas.edu. Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, TN, United States of America; Veterans Affairs Medical Center, Nashville, TN, United States of America. Rowe Neurology Institute, Lenexa, KS, United States of America. Electronic address: vrowe@neurokc.com. Rowe Neurology Institute, Lenexa, KS, United States of America. Electronic address: erowe@neurokc.com. Department of Neurology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America; The Colangelo College of Business, at Grand Canyon University, Phoenix, AZ, United States of America. Electronic address: Tvarkey@utexas.edu. Department of Neurology, Stanford University School of Medicine, Palo Alto, CA, United States of America. Electronic address: Steinman@stanford.edu. Department of Neurology and Program in Immunology, University of California San Francisco, San Francisco, CA, United States of America. Electronic address: zamvil@ucsf.neuroimmunol.org. Department of Neurology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America; Department of Neurosurgery, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America; Department of Ophthalmology, The Dell Medical School, The University of Texas at Austin, Austin, TX, United States of America. Electronic address: Teresa.frohman@austin.utexas.edu.