SHERZAD HUSSIEN, S. Relation of the 25 (OH) D Levels and Preterm Labour. Al-Kitab Journal for Pure Sciences, [S. l.], v. 4, n. 1, p. 41–51, 2023. DOI: 10.32441/kjps.04.01.p4. Disponível em: https://isnra.net/ojs/index.php/kjps/article/view/572. Acesso em: 3 oct. 2025.