M. M. . Yazıcı, G. Altuntaş, A. Aygün, and E. Nalbant, “The Value of the C-Reactive Protein/Albumin and Fibrinogen/Albumin Ratios in Predicting Disease Severity and Mortality in Elderly COVID-19 Patients”, Med Sci Discov, vol. 9, no. 6, pp. 362–367, Jun. 2022.