DHAKAL, S.; HEBBAR, S. Role of cervical ultrasound in prediction of preterm labor. Nepal Journal of Obstetrics and Gynaecology, [S. l.], v. 2, n. 2, p. 20–23, 2008. Disponível em: https://nepjol.info/index.php/NJOG/article/view/1450. Acesso em: 18 jul. 2024.