1. Institute of Functional and Clinical Anatomy, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
2. Department of Neurosurgery, Paracelsus Medical University, Nürnberg, Germany
3. Sechenov University, Department of Operative Surgery and Topographic Anatomy, Moscow, Russia
4. Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital of Psychiatry Zurich, Zürich, Switzerland