1 Department of Intensive Care Medicine, University Medical Centre Utrecht, Room F06.149, 3508 GA, Utrecht, The Netherlands. a.sajjad@umcutrecht.nl.
2 Department of Intensive Care Medicine, University Medical Centre Utrecht, Room F06.149, 3508 GA, Utrecht, The Netherlands.
3 Institute of Psychology, Health Medical and Neuropsychology Unit, Leiden Institute for Brain and Cognition, Leiden University, Leiden, The Netherlands.
4 Department of Epidemiology, Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands.
5 Brain Center Rudolf Magnus, Utrecht University, Utrecht, The Netherlands.