Mushtaq, M. A., Khan, T., Tariq, M. W., Naqvi, S. S., Mannan, M. A. ul, Khan, A. and Khan, Z. (2018) “To determine the frequency of undiagnosed bronchiectasis in patients suffering from severe persistent asthma in Nishtar Hospital multan”., Pakistan Journal of Chest Medicine, 24(1), pp. 28–33. Available at: http://www.pjcm.net/index.php/pjcm/article/view/504 (Accessed: 17April2026).