NIGAR, A.; AHMAD, A. Prevalence of anemia in pregnancy at booking: a retrospective study at a tertiary care centre in Lucknow India. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, [S. l.], v. 9, n. 11, p. 4585–4589, 2020. DOI: 10.18203/2320-1770.ijrcog20204815. Disponível em: https://www.ijrcog.org/index.php/ijrcog/article/view/9120. Acesso em: 4 oct. 2025.