1. Department of NeurologyInstitute of Clinical Medicine, University of Eastern FinlandKuopioFinland
2. Department of Chronic Disease PreventionNational Institute for Health and WelfareHelsinkiFinland
3. Aging Research CenterKarolinska InstitutetStockholmSweden
4. Alzheimer's Disease Research CenterKarolinska InstitutetStockholmSweden
5. Institute of Health Sciences/GeriatricsUniversity of Oulu and University HospitalOuluFinland
6. Oulu City HospitalOuluFinland
7. Department of NeurologyKuopio University HospitalKuopioFinland
8. Department of Lifestyle and ParticipationNational Institute for Health and WelfareHelsinkiFinland
9. Kuopio Research Institute of Exercise MedicineKuopioFinland
10. Department of PsychologyUmeå UniversityUmeåSweden
11. Department of Medicine, Geriatric ClinicUniversity of Helsinki and University HospitalHelsinkiFinland
12. Department of Public HealthUniversity of HelsinkiHelsinkiFinland
13. South Ostrobothnia Central HospitalSeinäjokiFinland