Yazici, O., S.T. Gulen, C. Yenisey, U. Eryilmaz, B.I. Abas, and M. Polatli. 2021. “Comparison of Inflammation Biomarkers Among Chronic Obstructive Pulmonary Disease Groups: A Cross Sectional Study”. Nigerian Journal of Clinical Practice 23 (6):817-24. https://doi.org/10.4103/njcp.njcp_222_19.