Prevalence of Vitamin D Deficiency and Insufficiency Across Trimesters of Pregnancy in Maiduguri, Nigeria: A Cross-Sectional Study. AJBR [Internet]. 31 ianuarie 2021 [citat 25 aprilie 2026];24(1):53-7. Disponibil la: https://ojshostng.com/index.php/ajbr/article/view/1689