WANJARI, S. A. Twin births: an overview. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 3, n. 4, p. 995–997, 2017. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/1354. Acesso em: 4 dec. 2025.