1. Atatürk University Hospital, Clinic of Internal Medicine, Division of Geriatrics, Erzurum, Turkey

2. Erzurum Regional Training and Research Hospital, Clinic of Infectious Diseases, Erzurum, Turkey

3. Atatürk University Hospital, Clinic of Internal Medicine, Erzurum, Turkey

4. Atatürk University Hospital, Clinic of Department of Emergency Medicine, Erzurum, Turkey

5. Atatürk University Hospital, Clinic of Internal Medicine, Division of Nephrology, Erzurum, Turkey