Relationship between pulmonary artery systolic pressure estimated by Doppler echocardiography and values obtained by right heart catheterization. Actas Médicas (Ecuador), [S. l.], v. 35, n. 2, p. 154–159, 2025. DOI: 10.61284/270. Disponível em: https://actasmedicas.ec/index.php/am/article/view/270.. Acesso em: 26 may. 2026.