Gradim, Clícia Valim Côrtes, Maria Cláudia Magalhães, Marília de Cássia Ferreira Faria, and Cássia Irene Spinelli Arantes. 2011. “Maternal Breast Feeding As a Factor of Protection for the Breast Cancer”. Rev Rene 12 (2). http://www.periodicos.ufc.br/rene/article/view/4221.