1. Department of Neurology Heidelberg University Hospital Heidelberg Germany
2. Department of Neuroradiology Heidelberg University Hospital Heidelberg Germany
3. Division of Experimental Radiology, Department of Neuroradiology Heidelberg University Hospital Heidelberg Germany
4. Department of Neurology University of Michigan Ann Arbor Michigan USA
5. Center for Neurology and Hertie Institute for Clinical Brain Research University Hospital Tübingen Germany
6. German Center for Neurodegenerative Diseases (DZNE) Tübingen Germany