1. Department of Geriatric Medicine, Dokuz Eylul University, Faculty of Medicine, Izmir, Turkey;
2. Department of Radiology, Dokuz Eylul University, Faculty of Medicine, Izmir, Turkey;
3. Department of Geriatric Medicine, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Turkey;
4. Faculty of Medicine, Department of Geriatric Medicine, Unit for Aging Brain and Dementia, Dokuz Eylul University, Izmir, Turkey