1 Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University, 34390, Capa, Istanbul, Turkey. gbahatozturk@yahoo.com.
2 Division of Geriatrics, Department of Internal Medicine, Marmara University Hospital, 34662, Pendik, Istanbul, Turkey.
3 Division of Geriatrics, Department of Internal Medicine, Istanbul Medical School, Istanbul University, 34390, Capa, Istanbul, Turkey.