[1]
Dr. Rakesh Kumar Shahi, Dr. Rajendra Rai and Dr. P Nigam 2020. Electrocardiographic Findings and Its Comparison With Chronic Obstructive Pulmonary Disease Severity In Patients: A Prospective Study: Electrocardiographic Findings And Its Comparison With COPD Severity In Patients. National Journal of Integrated Research in Medicine. 11, 4 (Sep. 2020), 15–18.