HIRACHAN, Anish et al. Echocardiographic right heart study in patients with chronic obstructive pulmonary disease. Nepalese Heart Journal, [S. l.], v. 14, n. 2, p. 9–12, 2017. DOI: 10.3126/njh.v14i2.18496. Disponível em: https://nepjol.info./index.php/NHJ/article/view/18496. Acesso em: 10 mar. 2025.