1. Department of NeurologyUniversity Medical Centre Groningen, Hanzeplein 1, PO Box 30.001 9700RB Groningen the Netherlands
2. Department of CardiologyUniversity Medical Centre Groningen, Hanzeplein 1, PO Box 30.001 9700RB Groningen the Netherlands
3. Department of Clinical NeurophysiologyUniversity Medical Centre Groningen, Hanzeplein 1, PO Box 30.001 9700RB Groningen the Netherlands
4. Department of Radiology and Neuro‐Imaging CentreUniversity Medical Centre Groningen, Hanzeplein 1, PO Box 30.001 9700RB Groningen the Netherlands
5. Department of NeuropsychologyUniversity Medical Centre Groningen, Hanzeplein 1, PO Box 30.001 9700RB Groningen the Netherlands