Anjum A, Khalid MK, Shafiq S, Mustafa T ur R, Munir A. Association of ECG Lead I Sign in Patients of Chronic Obstructive Pulmonary Disease. IJBR [Internet]. 2025 Apr. 26 [cited 2026 Apr. 9];3(4):618-22. Available from: https://induspublishers.com/index.php/IJBR/article/view/973