NAIR, R. Comparative study of Ultrasonographic Evaluation of Vaginal Bleeding in Pregnancy with Clinical Examination. International Journal of Health and Clinical Research, [S. l.], v. 3, n. 6, p. 120–123, 2020. Disponível em: https://ijhcr.com/index.php/ijhcr/article/view/215. Acesso em: 5 feb. 2025.