1. Department of Clinical Science, Neurosciences Umeå University UmeåSweden
2. Department of Clinical Neuroscience Institute of Neuroscience and Physiology Sahlgrenska AcademyUniversity of Gothenburg GothenburgSweden
3. Department of Clinical Neuroscience Karolinska Institutet StockholmSweden
4. Center for Molecular Medicine Stockholm Sweden
5. Infections and Cancer Epidemiology German Cancer Research Center (Deutsches Krebsforschungszentrum) Heidelberg Germany
6. Department of Neurology Skåne University Hospital in Malmö/Lund and Institution of Clinical Sciences, NeurologyLund University LundSweden
7. School of Medical Sciences Örebro University ÖrebroSweden
8. Department of Neurology and Department of Clinical and Experimental Medicine Linköping University LinköpingSweden
9. Department of Public Health and Clinical Medicine Umeå University Umeå Sweden