1 Neuropsychology Unit, Department of Neurology, Kantonsspital Aarau, Aarau, Switzerland.
2 Department of Anaesthesiology and Pain Medicine, Cantonal Hospital of St. Gallen, St. Gallen, Switzerland; Faculty of Medicine, University of Bern, Bern, Switzerland.
3 Faculty of Medicine, University of Bern, Bern, Switzerland; Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland. Electronic address: [email protected].