Clinical and Ultrasonographical Evaluation of First Trimester Vaginal Bleeding. International Journal of Environmental Sciences, [S. l.], p. 3255–3259, 2025. DOI: 10.64252/f4y0zr46. Disponível em: https://theaspd.com/index.php/ijes/article/view/7858.. Acesso em: 16 apr. 2026.