1. Division of Neurology (MK, MM, PM, NW, NIK, AA, EE, JM), Neuroscience Institute, Spectrum Health, Grand Rapids; Michigan State University (MK, MM, PM, JPT, WM, DB, NW, NIK, AA, MD, AG, NC, JM), Grand Rapids; Department of Neurology (MK), Mayo Clinic, Rochester, MN; Division of Neurosurgery (JPT), Neuroscience Institute, Grand Rapids; and Division of Cardiology (WM, DB, MD, AG, TM, NC), Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI.