M. de O. Fonseca-Machado, V. J. Haas, J. Stefanello, A. M. S. Nakano, and F. Gomes-Sponholz, “Breastfeeding: knowledge and practice”, Rev. Esc. Enferm. USP, vol. 46, no. 4, pp. 809–815, Aug. 2012, doi: 10.1590/S0080-62342012000400004.