F Fluri1, G Balestra2, M Christ2, St Marsch3, P Fuhr1, St Rüegg4. 1. Department of Neurology, Division of Clinical Neurophysiology, University Hospital Basel, Petersgraben 4, CH-4031 Basel, Switzerland. 2. Department of Intensive Care Medicine, University Hospital Basel, Switzerland; Department of Internal Medicine, University Hospital Basel, Switzerland. 3. Department of Internal Medicine, University Hospital Basel, Switzerland. 4. Department of Neurology, Division of Clinical Neurophysiology, University Hospital Basel, Petersgraben 4, CH-4031 Basel, Switzerland. Electronic address: srueegg@uhbs.ch.