Affiliation: | a Brain Research Unit, Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT, Espoo, Finland b Department of Neurology, Central Hospital of Central Finland, Keskussairaalantie 19, FIN-40620 Jyväskylä, Finland c Department of Clinical Neurosciences, Helsinki University Central Hospital, FIN-00290 Helsinki, Finland d Department of Radiology, Helsinki University Central Hospital, FIN-00290 Helsinki, Finland |