1. Department of Anesthesiology, Erasmus MC, Rotterdam, The Netherlands
2. Center of Anesthesiology, Critical Care, Emergency Medicine and Pain Therapy, University-Hospital of Göttingen, Göttingen, Germany
3. Department of Clinical Neurophysiology, Stichting Epilepsie Instellingen Nederland, Heemstede, The Netherlands
4. Deptarment of Anesthesiology, Critical Care, Emergency Medicine and Pain Therapy, Klinikum Oldenburg, Medical Campus University of Oldenburg, Oldenburg, Germany.