1. German Center for Neurodegenerative Diseases, 39120 Magdeburg, Germany
2. Department of Neurology, Otto von Guericke University Magdeburg, 39120 Magdeburg, Germany
3. J. Philip Kistler Stroke Research Center, Massachusetts General Hospital, Boston, MA 02114, USA
4. Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke University, 39120 Magdeburg, Germany
5. Department of Neuroradiology, University Hospital Heidelberg, 69120 Heidelberg, Germany
6. Department of Medicine and Surgery, Unit of Neurology, Azienda Ospedaliero- Universitaria, 43126 Parma, Italy
7. Biomedical Magnetic Resonance, Otto von Guericke University Magdeburg, 39120 Magdeburg, Germany
8. Institute of Cognitive Neuroscience, University College London, London WC1N 3AZ, UK
9. Center for Behavioral Brain Sciences (CBBS), 39106 Magdeburg, Germany