1. Department of Neurology; University Hospital Würzburg; Würzburg
2. Department of Vascular Medicine; University Hospital and Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg; Würzburg
3. Department of Neurology; University of Münster; Münster
4. Department of Anesthesiology and Critical Care; University of Würzburg; Würzburg
5. Department of Neuroradiology; University Hospital Würzburg; Würzburg
6. Hans Berger Department of Neurology and Integrated Research and Treatment Center; Center for Sepsis Control and Care, Jena University Hospital; Jena
7. Institute of Physiology and Neuropathophysiology, University of Münster; Münster Germany