1. Department of Community Medicine and Rehabilitation, Geriatric Medicine Umeå University Umeå Sweden
2. Department of Pharmacology and Clinical Neuroscience Umeå University Umeå Sweden
3. Department of Clinical Sciences, Psychiatry Umeå University Umeå Sweden
4. Umeå Center for Functional Brain Imaging (UFBI) Umeå University Umeå Sweden
5. Aging Research Center Karolinska Institutet and Stockholm University Stockholm Sweden
6. Department of Clinical Microbiology, Virology Umeå University Umeå Sweden