1. Radboud University Nijmegen Medical Centre, Department of Neurology and Parkinson Center Nijmegen, Nijmegen, The Netherlands
2. Radboud University Nijmegen Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
3. Radboud University Nijmegen Medical Centre, Department of Geriatric Medicine and Alzheimer Centre Nijmegen, Nijmegen, The Netherlands
4. Radboud University Nijmegen Medical Centre, Department of Intensive Care Medicine, Nijmegen, The Netherlands
5. Radboud University Nijmegen Medical Centre, Department of Laboratory Medicine, Nijmegen, The Netherlands