E. Martins, R. Freitas-Junior, M. P. Curado, N. M. A. Freitas, C. M. B. Silva, and J. C. Oliveira, “Prevalence of breast cancer in the city of Goiânia, Goiás, Brazil, between 1988 and 2002”, Sao Paulo Med J, vol. 129, no. 5, pp. 309–314, Sep. 2011.