MATHEW, R.; WILLS, V.; ABRAHAM, J. Maternal determinants and fetal outcome of twin pregnancy: a five-year survey. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 6, n. 6, p. 2459–2465, 2017. DOI: 10.18203/2320-1770.ijrcog20172331. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/2661. Acesso em: 4 oct. 2025.