VORA, P. H.; CHOUDHARY, R. A.; GANLA, K. N. Sildenafil citrate to improve colour doppler indices in patient with pre-eclampsia: a path less taken. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 9, n. 12, p. 5124–5126, 2020. DOI: 10.18203/2320-1770.ijrcog20205259. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/9144. Acesso em: 29 dec. 2025.