1. Department of Neuroscience and Rehabilitation, Tampere University Hospital, Tampere, Finland.
2. Department of Radiology, Medical Imaging Centre of Pirkanmaa Hospital District, Tampere, Finland.
3. Department of Biomedical Engineering, Tampere University of Technology, Tampere, Finland.
4. Science Center, Pirkanmaa Hospital District and School of Health Sciences, University of Tampere, Tampere, Finland.
5. Department of Neurological Sciences, University of Helsinki, Helsinki, Finland.
6. Department of Neurology, Helsinki University Central Hospital, Helsinki, Finland.
7. School of Medicine, University of Tampere, Tampere, Finland.