Alam, M., Ansari, M. I. S., Shehzad, M. I., Shehzad, A. ., Din, J. ud . and Afzal, M. W. (2023) “Frequency of Deep Vein Thrombosis (DVT) in Patients with COPD in a Tertiary Care Hospital”, Pakistan Journal of Chest Medicine, 29(2), pp. 176–180. Available at: http://pjcm.net/index.php/pjcm/article/view/780 (Accessed: 17April2026).