1. Department of Neurology, Center for Neuroscience, Radboudumc, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
2. Department of Neurology, Elisabeth Tweesteden Hospital, PO Box 90151, 5000, LC Tilburg, the Netherlands
3. Center for Neurology and Neurorehabilitation, Luzern State Hospital, Luzern, Switzerland
4. Department of Cardiology, Radboudumc, HB Nijmegen, the Netherlands
5. Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK