ZAATER, M. K. Correlation between serum Ca, Mg, Zn & Cu and hypertension in pre-eclampsia. African Journal of Nephrology, [S. l.], v. 8, n. 2, p. 68–72, 2023. DOI: 10.21804/8-2-5792. Disponível em: https://www.journals.ac.za/ajn/article/view/5792. Acesso em: 8 oct. 2025.