1. Institute for Neuroradiology, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
2. Department of Anesthesiology, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
3. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
4. Institute of Biomedical Problems of the Russian Academy of Sciences (SSC RF-IBMP RAS), Moscow, Russia