1. Department of Intensive Care Medicine and University Medical Center Utrecht Brain Center University Medical Center Utrecht, Utrecht University Utrecht The Netherlands
2. Department of Neurology and Neurosurgery and University Medical Center Utrecht Brain Center University Medical Center Utrecht, Utrecht University Utrecht The Netherlands
3. Department of Intensive Care Medicine Radboud Institute of Health Science, Radboud University Medical Center Nijmegen Nijmegen The Netherlands
4. Department of Neurology UZ Brussel Brussels Belgium