Mahmud, T. ., Saqib, M., Siddiqui, U. N., Khan, A. S. . and Aasim, M. (2021) “Clinical Characteristics of Hospitalized Patients with COVID-19 at Tertiary Care Hospital of Pakistan”, Pakistan Journal of Chest Medicine, 27(2), pp. 68–73. Available at: https://pjcm.net/index.php/pjcm/article/view/712 (Accessed: 17April2026).