SHABBIR, Asma; HUSSAIN ZAIDI, Syed Badshah; NISAR, Shazia. FREQUENCY OF ECG ABNORMALITIES IN PATIENTS OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE ACCORDING TO DISEASE SEVERITY: ECG Abnormalities in Chronic Obstructive Pulmonary Disease. Pakistan Armed Forces Medical Journal, [S. l.], v. 67, n. 4, p. 569–74, 2017. Disponível em: https://pafmj.org/PAFMJ/article/view/689. Acesso em: 29 mar. 2024.