Gulistan Bahat1, Duygu Erbas Sacar2. 1. Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University, Capa, 34390, Istanbul, Turkey. gbahatozturk@yahoo.com. 2. Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University, Capa, 34390, Istanbul, Turkey.