1. Department of Neurosurgery, Otto-von-Guericke-University, Magdeburg, Germany
2. Department of Plastic Surgery, Otto-von-Guericke-University, Magdeburg, Germany
3. Department of Neuropathology, Otto-von-Guericke-University, Magdeburg, Germany
4. Department of Neuroradiology, Otto-von-Guericke-University, Magdeburg, Germany