A Comparative Study of the Effect of Using RO Water on Zinc and Copper Level and its Effect on the Level of Hemoglobin in Pregnant Women. Al-Nahrain Journal of Science, [S. l.], v. 21, n. 1, p. 46–51, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/153.. Acesso em: 28 apr. 2024.