1 Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center, Freiburg (iBr), Germany Department of Neurosurgery, Freiburg University Medical Center, Freiburg (iBr), Germany.
2 Department of Stereotactic and Functional Neurosurgery, Freiburg University Medical Center, Freiburg (iBr), Germany.
3 Department of Otolaryngology, University of Bonn, Bonn, Germany.
4 Department of Neurology, University of Bonn, Bonn, Germany.
5 Neurological Rehabilitation Center Godeshoehe, Bonn, Germany.