1. Department of Neurology, Johannes Wesling Klinikum Minden, Minden, Germany
2. Division of Stroke Medicine, University of Nottingham, Nottingham, UK
3. Dept of Cerebrovascular Medicine, University of Glasgow, Glasgow, Scotland
4. Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, Mass., USA
5. Dept of Neurology, Medical University (MH) Hannover, Germany
6. Université Lille Nord de France, Lille, France