PUSHPARAJ, S.; NAGARAJ, P. Transvaginal ultrasonographic assessment of cervical length in prediction of preterm labour in high risk asymptomatic women. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 7, n. 12, p. 4981–4986, 2018. DOI: 10.18203/2320-1770.ijrcog20184952. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/5658. Acesso em: 9 feb. 2025.