1. Neurocenter Luzerner Kantonsspital Lucerne Switzerland
2. Chair for Mathematical Information Science ETH Zurich Zurich Switzerland
3. Department of Computer Science ETH Zurich Zurich Switzerland
4. ARTORG Center for Biomedical Engineering Research, Gerontechnology and Rehabilitation Group University Bern Bern Switzerland
5. Department of Neurology Inselspital, Bern University Hospital, University of Bern Switzerland