1. Instituto de Ciências Biomédicas Abel Salazar (ICBAS), University of Porto , 4050-313 Porto , Portugal
2. Centro Hospitalar Universitário do Porto (CHUPorto) , 4099-001 Porto , Portugal
3. Institute for Research and Innovation in Health (i3s), University of Porto , 4200-135 Porto , Portugal
4. Department of Neurology, Kiel University , 24118 Kiel , Germany
5. Institute for Medical Engineering and Research Campus STIMULATE, University of Magdeburg , 39106 Magdeburg , Germany
6. HASOMED GmbH , 39114 Magdeburg , Germany