1. Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany
2. Institute of Clinical Epidemiology and Biometry, Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany
3. Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
4. Department of Neurology, Universitätsmedizin Mannheim, University of Heidelberg, Mannheim, Germany
5. Department of Neurology and Stroke, Tübingen University, Tübingen, Germany
6. Department of Neurology, University Hospital Würzburg, Würzburg, Germany
7. Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany7Department of Neurology, Frankfurt Hoechst Hospital, Frankfurt am Main, Germany
8. Institute of Clinical Epidemiology and Biometry, Comprehensive Heart Failure Center, University of Würzburg, Würzburg, Germany8Clinical Trial Center Würzburg, University Hospital Würzburg, Würzburg, Germany
9. Department of Neurology, Heidelberg University Hospital, Heidelberg, Germany9Department of Stroke Medicine, Imperial College London, London, England