1 From the Department of Neurology (D.W., H.B.-V., C.R.B.) and Department of Neurosurgery (L.S.), University Hospital Zurich, University of Zurich; and Practice for Neurorehabilitation (R.H.-S.), Zurich, Switzerland. d.waldvogel@bluewin.ch.
2 From the Department of Neurology (D.W., H.B.-V., C.R.B.) and Department of Neurosurgery (L.S.), University Hospital Zurich, University of Zurich; and Practice for Neurorehabilitation (R.H.-S.), Zurich, Switzerland.