1. Department of Neurology, Karolinska University Hospital, Stockholm, Sweden
2. Neuroimmunology Unit, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
3. Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
4. Department of Neurology and Rehabilitation, Ryhov Regional Hospital, Jönköping, Sweden
5. Department of Neurology, Uppsala University Hospital, Uppsala, Sweden
6. Department of Medical Sciences, Section of Neurology, Uppsala University, Uppsala, Sweden
7. Department of Clinical Science, Neurosciences, Umeå University, Umeå, Sweden
8. Department of Neurology, Linköping University Hospital, Linköping, Sweden
9. Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
10. Department of Neurology and Rehabilitation, Central Hospital Karlstad, Karlstad, Sweden
11. Department of Neurology, Sahlgrenska University Hospital, Gothenburg, Sweden
12. Sahlgrenska Academy, Institute of Neuroscience and Physiology, Department of Clinical Neuroscience, Gothenburg University, Gothenburg, Sweden
13. Clinical Neurophysiology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
14. Department of Neurophysiology, Uppsala University Hospital, Uppsala, Sweden
15. Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden