MAULA, F.; KHAN, M. N.; ADIL, M.; ULLAH, J.; RAUF, A.; ULLAH, S. ECHOCARDIOGRAPHIC FINDINGS IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE (COPD) PATIENTS. Pakistan Journal of Chest Medicine, [S. l.], v. 19, n. 1, 2015. Disponível em: https://www.pjcm.net/index.php/pjcm/article/view/48. Acesso em: 31 may. 2026.