1 Institute of Human Genetics (M.S., B.Z., S.P.), Department of Neurology (J.Z., J.S.), and Department of Neuroradiology (P.H.), University Medical Center Göttingen; Department of Human Genetics (W.K.), University of Würzburg; and CeGaT GmbH und Praxis für Humangenetik (J.M.), Tübingen, Germany.