1. Department of Neurology, University of Eastern Finland, P.O. Kuopio, Finland
2. Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
3. Alzheimer Disease Research Center, Karolinska Institutet, Stockholm, Sweden
4. Aging Research Center (ARC), Karolinska Institutet and Stockholm University, Stockholm, Sweden
5. Institute for Gerontology, School of Health Sciences, Jönköping University, Jönköping, Sweden
6. Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
7. Hospital District of North Karelia, Joensuu, Finland
8. Department of Neurology, Kuopio University Hospital, Kuopio, Finland