SINGH, R.; YADAV, P.; YADAV, A.; GREWAL, I. Assessment of role of fetal head to perineum distance by ultrasound as a predictor of successful vaginal delivery prior to induction of labour. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 12, n. 11, p. 3322–3327, 2023. DOI: 10.18203/2320-1770.ijrcog20233302. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/13499. Acesso em: 26 oct. 2025.