CHAUDHARI, R.; SHRIMALI, L. Study of clinical, electrocardiographic and echocardiographic profile in patients with chronic obstructive pulmonary disease. International Journal of Research in Medical Sciences, [S. l.], v. 6, n. 5, p. 1716–1720, 2018. DOI: 10.18203/2320-6012.ijrms20181765. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/4762. Acesso em: 12 oct. 2025.