1. Molecular Neurodegeneration group, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
2. Institute of Clinical Medicine - Neurology, University of Eastern Finland, Kuopio, Finland
3. Neuro Center, Neurology, Kuopio University Hospital, Kuopio, Finland
4. Unit of Clinical Neuroscience, Neurology, University of Oulu, Oulu, Finland
5. Medical Research Center, Oulu University Hospital, Oulu, Finland