1. Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
2. Center for Medical Decision Sciences, Department of Public Health, Erasmus Medical Center, Rotterdam, The Netherlands.
3. Department of Neurology, Isala Hospital Zwolle, Zwolle, The Netherlands.
4. Department of Neurosurgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
5. University Neurosurgical Center Holland (UNCH), Leiden University Medical Center, Haaglanden Medical Center & Haga Teaching Hospital, Leiden and The Hague, The Netherlands.
6. Department of Neurology, Haaglanden Medical Center, The Hague, The Netherlands.
7. Department of Neurosurgery, Erasmus MC Stroke Center, Erasmus Medical Center, Rotterdam, The Netherlands.