JAIN, S. A.; CHAKRAVARTI, N. C. To compare the effects of intra vaginal prostaglandin E1 and intra-cervical prostaglandin E2 for prelabour ripening of unfavorable uterine cervix in nulliparous women. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 8, p. 3381–3386, 2017. DOI: 10.18203/2320-1770.ijrcog20173447. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/3401. Acesso em: 29 dec. 2025.