Yılmaz, Erdal, Rohat Ak, and Fatih Doğanay. “Usefulness of the Neutrophil-to-Lymphocyte Ratio in Predicting the Severity of COVID-19 Patients: A Retrospective Cohort Study”. São Paulo Medical Journal 140, no. 1 (June 1, 2022): 1–6. Accessed March 14, 2025. https://periodicosapm.emnuvens.com.br/spmj/article/view/673.