KHTAN, A.; HUSSIEN, Y. A. Protective effect of sildenafil in pulmonary hypertensive child with congenital heart disease. Journal of Contemporary Medical Sciences, [S. l.], v. 4, n. 4, p. 211–215, 2018. DOI: 10.22317/jcms.v4i4.487. Disponível em: https://www.jocms.org/index.php/jcms/article/view/487. Acesso em: 27 apr. 2024.