SINGH, A. K.; KHAN, S. Heterotopic pregnancy: case report of a successful first trimester metacyesis management and a viable third trimester outcome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 8, n. 1, p. 332–334, 2018. DOI: 10.18203/2320-1770.ijrcog20185448. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/5840. Acesso em: 27 oct. 2025.