1. Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, Rostock University Medical Center, Schillingallee 35, 18057 Rostock, Germany
2. Department of Neurology, Rostock University Medical Center, Gehlsheimer Straße 20, 18147 Rostock, Germany
3. Department of Neurology, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany
4. Department of Medicine, Health and Medical University Erfurt, 99089 Erfurt, Germany
5. Department of Anesthesiology and Intensive Care Medicine, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany