1. Division of Geriatric Medicine, Department of Internal Medicine, Cerrahpasa Medical Faculty, Istanbul University, Cerrahpasa, Istanbul, Turkey
2. Bakırkoy District Health Directorate, Turkish Ministry of Health – Istanbul Health Directorate, Istanbul, Turkey
3. Department of Public Health, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey
4. Department of Infectious Diseases, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey
5. Department of Pulmonary Diseases, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey
6. Department of Radiology, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey
7. Department of Anesthesiology & Reanimation, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey
8. Department of Medical Microbiology, Cerrahpasa Medical Faculty, İstanbul University, Cerrahpaşa, İstanbul, Turkey