Danish, I. ., S. . Rehman, M. . Bibi, and R. . Khan. “Bacterial Etiology and Antibiotic Susceptibility Patterns in Acute Exacerbations of Chronic Obstructive Pulmonary Disease: Implications for Targeted Antimicrobial Therapy”. Pakistan Journal of Chest Medicine, vol. 31, no. 1, Mar. 2025, pp. 37-43, https://pjcm.net/index.php/pjcm/article/view/1002.