M.hassan, and Laiba Noor. “Neutrophil to Lymphocyte Ratio (NLR): A Road to an Inexpensive Biomarker for Acute Exacerbation of COPD”. Journal of the Pakistan Medical Association 75, no. 8 (July 28, 2025): 1317–1317. Accessed May 10, 2026. https://mail.jpma.org.pk/index.php/public_html/article/view/30284.