1. Faculty of Nursing, Internal Medicine Nursing Department, Hacettepe University, Ankara, Turkey
2. Faculty of Health Science, Internal Medicine Nursing Department, Sakarya University, Sakarya, Turkey
3. Faculty of Medicine, Internal Medicine Department, Geriatric Science, Trabzon Kanuni Training and Research Hospital, Trabzon, Turkey
4. Faculty of Medicine, Internal Medicine Department, Geriatric Science, Hacettepe University, Ankara, Turkey