1. Neuroimaging Research Laboratory, Department of Clinical Neurosciences; Lausanne University Hospital and University of Lausanne; Lausanne Switzerland
2. Department of Psychiatry, Psychotherapy; and Psychosomatics and Neuroscience Centre Zurich; University of Zurich Switzerland
3. Neurology Service, Department of Clinical Neurosciences; Lausanne University Hospital and University of Lausanne; Lausanne Switzerland
4. Department of Intensive Care Medicine; Lausanne University Hospital and University of Lausanne; Lausanne Switzerland
5. Neurology Service; Valais Hospital; Sion Switzerland
6. Intensive Care Medicine Service; Valais Hospital; Sion Switzerland