1. Department of Clinical Science, Neurosciences, Umeå University , 901 87 Umeå , Sweden
2. Department of Clinical Neuroscience, Karolinska Institutet , 171 77 Stockholm , Sweden
3. Center for Molecular Medicine , Karolinska University Hospital, 171 76 Stockholm , Sweden
4. Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg , 405 30 Gothenburg , Sweden
5. Infections and Cancer Epidemiology Division, German Cancer Research Center , 69120 Heidelberg , Germany
6. Department of Public Health and Clinical Medicine, Unit of Research, Education and Development Östersund Hospital, Umeå University , 901 87 Umeå , Sweden
7. Department of Neurology, Skåne University Hospital and Department of Clinical Sciences, Lund University , 221 84 Lund , Sweden
8. Department of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg , 405 30 Gothenburg , Sweden
9. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg , 405 30 Gothenburg , Sweden
10. Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital , 431 80 Mölndal , Sweden
11. Department of Neurodegenerative Disease, UCL Institute of Neurology , London, WC1N 3BG , UK
12. UK Dementia Research Institute at UCL , London, W1T 7NF , UK
13. Hong Kong Centre for Neurodegenerative Diseases , Hong Kong 999077, China
14. Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison , Madison, WI 53792 , USA
15. Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg , 405 30 Gothenburg , Sweden