1. Department of Internal Medicine, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
2. Department of Statistics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, Turkey
3. Department of Pulmonary Medicine, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
4. Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Ondokuz Mayıs University, Samsun, Turkey
5. Department of Family Medicine, Samsun Education and Research Hospital, Samsun, Turkey