Santeliz J, Delgado E. Cardiac function determined by two-dimensional transthoracic echocardiography in a cohort of venezuelans copd patients. Rev Vzlana Sal Pub. [Internet]. 2021May23 [cited 2025Apr.3];9(1):2-19. Available from: https://revistas.uclave.org/index.php/rvsp/article/view/3236