Quddus, M. A., R. S. Kiani, R. Munawar, S. Siddiq, and S. A. Bukhari. “Frequency and Clinical Implications of Pulmonary Disease in Patients With Inflammatory Bowel Disease”. Pakistan Journal of Chest Medicine, vol. 30, no. 1, Mar. 2024, pp. 64-70, https://www.pjcm.net/index.php/pjcm/article/view/948.