N A Sutedja1, A W H Hollands2, M J Jacobs3,4. 1. Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands. 2. Department of Clinical Neurophysiology, Maastricht University Medical Center, Maastricht, The Netherlands. a.hollands@student.maastrichtuniversity.nl. 3. Department of Vascular Surgery, Maastricht University Medical Center, Maastricht, The Netherlands. 4. University Hospital Aachen, Aachen, Germany.