1. Division of Geriatric Medicine, Department of Internal Medicine, Faculty of Medicine, Ege University, Izmir, Turkey.
2. Department of Internal Medicine, Faculty of Nursing, Ege University, Izmir, Turkey.
3. Division of Molecular Medicine Laboratory, Department of Pediatrics, Faculty of Medicine, Ege University, Izmir, Turkey.
4. Department of Biostatistics, Faculty of Medicine, Ege University, Izmir, Turkey.
5. Department of Internal Medicine, Faculty of Medicine, Ege University, Izmir, Turkey.