1.
Echocardiographic assessment of sildenafil’s effectiveness in heart failure and pulmonary hypertension. Rev. Fed. Arg. Cardiol. [Internet]. 2023 Jun. 29 [cited 2026 Oct. 5];52(2):77-84. Available from: https://www.revistafac.org.ar/ojs/index.php/revistafac/article/view/459