1. Department of Neurology, Sahlgrenska University Hospital, Blå stråket 7, 413 46 Gothenburg, Sweden
2. Department of Clinical Neuroscience, Institute of Neurosciences and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
3. Department of Neurology, Helsinki University Hospital, Helsinki, Finland
4. Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
5. Department of Clinical Medicine, University of Bergen, Bergen, Norway
6. Department of Neurology, Haukeland University Hospital, Bergen, Norway
7. Centre for Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
8. Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
9. Department of Neurology, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, The Netherlands
10. Department of Radiology, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
11. Department of Physiology, Centre for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Galway, Ireland