Sohail, F. ., Ashraf, T. ., AzamKhan, . A., Abid, M. ., IkramAli, M. and Shahid, N. (2024) “Microbiological Etiology of Chronic Cough Associated with Acute Exacerbation of Chronic Obstructive Pulmonary Disease (COPD): A Study from Karachi, Pakistan”, Pakistan Journal of Medicine and Dentistry, 9(4), pp. 52–57. doi: 10.36283/PJMD9-4/010.