Silva, C. A. P. da, Silva, C. A. P. da, Atallah, Álvaro N., Sass, N., Mendes, E. T. R. and Peixoto, S. (2010) “Evaluation of calcium and folic acid supplementation in prenatal care in São Paulo”, São Paulo Medical Journal, 128(6), pp. 324–327. Available at: https://periodicosapm.emnuvens.com.br/spmj/article/view/1836 (Accessed: 15 March 2025).