1. Department of Neurology and Stroke Unit, HELIOS General Hospital Aue, Technical University Dresden, Gartenstr. 6 - 08280 Aue, Germany
2. Department of Neurology, Carl-Gustav Carus University Hospital, 2-Fetcherstr. 74, 01307 Dresden, Germany
3. Department of Neuroradiology, HELIOS General Hospital, 3-Nordhäuserstr. 74, 99089 Erfurt, Germany
4. Department of Neurology, HELIOS General Hospital Wuppertal, Witten-Herdecke University, 4-Heusnerstr. 40, 42283 Wuppertal, Germany