1. Dresden University Stroke Center; University of Technology Dresden; Dresden Germany
2. St. Antonius Hospital Nieuwegein; Nieuwegein The Netherlands
3. Centre Hospitalier Universitaire Vaudois; Lausanne Switzerland
4. University of Munich; Klinikum Grosshadern; Munich Germany
5. University of Bern; Bern Switzerland
6. Utrecht Stroke Center; Utrecht The Netherlands
7. Institute for Medical Informatics and Biometry; University of Technology Dresden; Dresden Germany
8. University of Regensburg; Regensburg Germany
9. Julius Center for Health Sciences and Primary Care; Utrecht The Netherlands
10. Calgary Stroke Program; University of Calgary; Calgary Canada