ABD NABY AWAD, E. S. E. B. M.; DAYEM, T. M. A.; EL-AGWANY, A. M. S. Comparison between different methods of sonographic cervical length assessment during pregnancy. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 5, n. 5, p. 1348–1353, 2017. DOI: 10.18203/2320-1770.ijrcog20161286. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/1073. Acesso em: 9 oct. 2025.