1. Department of Neurosurgery, University of Halle-Wittenberg, Sachsen-Anhalt, Germany
2. Department of Neurosurgery, University Hospital Halle (Saale), Halle (Saale), Germany
3. Department of General Surgery, University of Halle-Wittenberg, Halle (Saale), Sachsen-Anhalt, Germany
4. Department of Pathology, University of Halle-Wittenberg, Halle (Saale), Sachsen-Anhalt, Germany
5. Department of Neuroradiology, University of Halle-Wittenberg, Halle (Saale), Sachsen-Anhalt, Germany
6. Department of Neurology, University of Halle-Wittenberg, Halle (Saale), Sachsen-Anhalt, Germany