«Prevalence of Vitamin D Deficiency and Insufficiency Across Trimesters of Pregnancy in Maiduguri, Nigeria: A Cross-Sectional Study», AJBR, vol. 24, n.º 1, pp. 53–57, jan. 2021, Acedido: 5 de abril de 2026. [Online]. Disponível em: https://ojshostng.com/index.php/ajbr/article/view/1689