1. Faculty of Medicine; Institute of Anatomy University of Leipzig; Leipzig Germany
2. Paul-Flechsig-Institute for Brain Research University of Leipzig; Leipzig Germany
3. Department of Neuroradiology; University Clinic of Leipzig, Faculty of Medicine; Leipzig Germany
4. Department of Neurosurgery; University Clinic of Leipzig, Faculty of Medicine; Leipzig Germany
5. Department of Anatomy; University of Otago; Dunedin New Zealand