Gulnaz, Humaira, Munazza Sardar, Syeda Rizwana Jafri, Syeda Zakia, and Kanwal Saeed. “Investigating the Influence of Chronic Obstructive Pulmonary Disease Severity on the Thickness of the Diaphragm Muscle”. Pakistan Journal of Chest Medicine 30, no. 2 (July 13, 2025): 203–210. Accessed April 17, 2026. http://www.pjcm.net/index.php/pjcm/article/view/964.