RANI, K. U.; GUPTA, J.; GUPTA, R.; AGGARWAL, K. C. Maternal anaemia and its severity: an independent risk factor for preterm delivery and adverse neonatal outcome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 3, n. 2, p. 325–329, 2017. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/886. Acesso em: 4 oct. 2025.