[1]
C. A. P. da Silva, C. A. P. da Silva, Álvaro N. Atallah, N. Sass, E. T. R. Mendes, and S. Peixoto, “Evaluation of calcium and folic acid supplementation in prenatal care in São Paulo”, Sao Paulo Med J, vol. 128, no. 6, pp. 324–327, Nov. 2010.