[1] Univ Kuopio, Dept Neurol & Neurosci, FIN-70211 Kuopio, Finland
[2] Kuopio Univ Hosp, Dept Neurol, SF-70210 Kuopio, Finland
[3] Univ Kuopio, Clin Res Ctr Mediteknia, Brain Res Unit, FIN-70211 Kuopio, Finland
[4] Massachusetts Gen Hosp, Dept Neurol, MassGen Inst Neurodegenerat Dis, Genet & Aging Res Unit, Charlestown, MA USA
[5] Kuopio Univ Hosp, Dept Pathol, SF-70210 Kuopio, Finland