Institution: | aFrom the Department of Stereotactic and Functional Neurosurgery (V.A.C., B.M.);bthe Clinical Trial Unit (C.J.), Freiburg University Medical Center, Freiburg, Germany;cSurgical Center for Movement Disorders/Division of Neurosurgery (C.R.H.);dDepartment of Physics and Astronomy (B.M.), University of British Columbia, Vancouver, British Columbia, Canada;ePhilips Healthcare (B.M.), Hamburg, Germany. |