GUPTA, P.; MAHESHWARI, S. Саse reроrt оf unusual presentation of heterоtrорiс рregnаnсy: anembryonic and ectopic pregnancy with opposite fimbrial block in а primigravida femаle. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 10, n. 10, p. 3983–3985, 2021. DOI: 10.18203/2320-1770.ijrcog20213875. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/10796. Acesso em: 2 oct. 2025.