From the Departments of Neurology (S.R.S., S.H.-L., N.W., A.L., G.K.) and Neurosurgery (R.B.), Kantonsspital St. Gallen, Switzerland; Sobell Department of Motor Neuroscience and Movement Disorders (S.R.S., K.P.B.), University College London, Institute of Neurology, UK; Institute of Neurology (P.N.), Queen Square, London, UK; and Center for Focused Ultrasound (B.W., E.M.), University of Zurich, Children's Hospital Zurich, Switzerland. (At 2017-04-04)