1. Department of Pharmacology, University Medicine Greifswald, Greifswald, Germany
2. Department of Neurosurgery, University Medicine Greifswald, Greifswald, Germany
3. Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
4. Institute of Pathology, Department of Neuropathology, University Medicine Greifswald, Greifswald, Germany