1. Hacettepe University Faculty of Medicine, Department of Internal Medicine, Division of Geriatrics Medicine, Ankara, Turkey

2. Hacettepe University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey

3. University of Health Sciences Turkey, Mehmet Akif İnan Training and Research Hospital, Clinic of Geriatrics, Şanlıurfa, Turkey

4. Hacettepe University Faculty of Medicine, Department of Psychiatry, Ankara, Turkey