Calcium deficiency and its relationship to some biochemical variables for pregnant women in the Samarra city. Samarra Journal of Pure and Applied Science, [S. l.], v. 2, n. 1, p. 9–16, 2020. Disponível em: https://www.sjpas.com/index.php/sjpas/article/view/4. Acesso em: 16 apr. 2026.