Hassan, S. H., Sheikh, S. A. and Munfeat, F. (2015) “SPIROMETRY AND VITAL PARAMETERS IN ASSESSMENT OF ASTHMA AND COPD IN RURAL POPULATION OF KARACHI”, Pakistan Journal of Chest Medicine, 13(1). Available at: https://www.pjcm.net/index.php/pjcm/article/view/188 (Accessed: 12May2026).