Affiliation: | 1. Department of Neurology, Haukeland University Hospital, Bergen, Norway;2. Department of Clinical Medicine, University of Bergen, Bergen, Norway;3. Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway;4. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway;5. Department of Research and Development, Haukeland University Hospital, Bergen, Norway;6. Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway;7. KG Jebsen Centre for Influenza Vaccine Research, Department of Clinical Science, University of Bergen, Bergen, Norway;8. KG Jebsen Centre for MS Research, Department of Clinical Medicine, University of Bergen, Bergen, Norway;9. Norwegian Multiple Sclerosis Registry and Biobank, Department of Neurology, Haukeland University Hospital, Bergen, Norway |