1. Department of Neurosurgery Erasmus Medical Center, Erasmus MC Stroke Center Rotterdam the Netherlands
2. Department of Public Health Erasmus Medical Center Rotterdam the Netherlands
3. Department of Neurology University Groningen, University Medical Center Groningen Groningen the Netherlands
4. Department of Internal Medicine Nursing Science, Erasmus Medical Center Rotterdam the Netherlands
5. Department of Neurosurgery Medisch Spectrum Twente Enschede the Netherlands
6. Department of Neurology Haaglanden Medical Center Hague the Netherlands
7. Haaglanden Medical Center, Haga Teaching Hospital University Neurosurgical Center Holland (UNCH) Leiden University Medical Center Leiden the Netherlands
8. Department of Neurology Amphia Hospital Breda the Netherlands
9. Department of Neurology Isala Hospital Zwolle Zwolle the Netherlands
10. Department of Neurosurgery, Neurosurgical Center Amsterdam Amsterdam University Medical Centers Amsterdam the Netherlands