1. Department of Neurology, Neuroscience Research Group (M.W.K.), Stavanger University Hospital, Stavanger, Norway.
2. Department of Clinical Science, University of Bergen, Norway (M.W.K.).
3. Department of Clinical Neurosciences (J.M.O., M.G.), University of Calgary, AB, Canada.
4. Department of Radiology (K.D.K.), Stavanger University Hospital, Stavanger, Norway.
5. SMIL Stavanger Medical Imaging Laboratory (K.D.K.), Stavanger University Hospital, Stavanger, Norway.
6. Department of Electrical and Computer Engineering, University of Stavanger, Norway (K.D.K.).
7. Department of Diagnostic Imaging (M.G.), University of Calgary, AB, Canada.