1. Institute of Clinical Medicine University of Oslo Oslo Norway
2. Department of Geriatric Medicine Oslo University Hospital Oslo Norway
3. Centre for Clinical Brain Sciences University of Edinburgh Edinburgh UK
4. Sheffield Institute for Translational Neuroscience University of Sheffield Sheffield UK
5. Department of Public Health and Clinical Science University of Umeå Umeå Sweden
6. Department of Clinical Science Karolinska Institutet Danderyds Hospital Stockholm Sweden
7. Department of Cardiology Oslo University Hospital Oslo Norway
8. Department of Neurology Akershus University Hospital Nordbyhagen Norway