NAIR, V.; SRIVASTAVA, A.; TANGRI, M. Obstetric outcome in sonologically short cervix: a prospective observational study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 5, n. 12, p. 4351–4355, 2016. DOI: 10.18203/2320-1770.ijrcog20164341. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/50. Acesso em: 2 oct. 2025.