LALCHAND, H.; DODDAPANENI, P. Role of clinical examination, ultrasound findings and serum beta-hCG in first trimester vaginal bleeding. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 13, n. 5, p. 1219–1222, 2024. DOI: 10.18203/2320-1770.ijrcog20241069. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/14020. Acesso em: 30 oct. 2025.