[1]
Dr. Ashish Chatterjee, Dr. Dadan Prasad, and Dr. Rajeev Kumar, “Electrocardiographic and Echocardiographic Changes in Patients with Chronic Obstructive Pulmonary Disease and Their Correlation with Disease Severity: A Cross-Sectional Study”, IJPRT, vol. 16, no. 1, pp. 3418–3424, Jun. 2026.