EL FATAH, L. E. A.; ELNASHAR, D. A.; ELABASS, Z. M. A.; AIT-ALLAH, A. S. Sildenafil citrate for the management of asymmetrical intrauterine growth restriction and its effect on umbilical artery Doppler. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 11, n. 3, p. 714–719, 2022. DOI: 10.18203/2320-1770.ijrcog20220550. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/11252. Acesso em: 29 dec. 2025.