1. Department of Neurosurgery, University of Greifswald, Sauerbruchstraße, Greifswald, Germany
2. Department of Neurosurgery and Brain Repair, University of South Florida, Tampa, Florida
3. Department of Neuropathology, University of Greifswald, Greifswald, Germany
4. Institut of Radiology and Neuroradiology, University of Greifswald, Sauerbruchstraße, Greifswald, Germany