@article{chambo_kemp_costa_souza_guerreiro da silva_2009,  title={Polymorphism in CYP17, GSTM1 and the progesterone receptor genes and its relationship with mammographic density},  volume={42},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X2009000400003},  DOI={10.1590/S0100-879X2009000400003},  number={4},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Chambo, D. and Kemp, C. and Costa, A.M.M. and Souza, N.C.N. and Guerreiro da Silva, I.D.C.},  year={2009},  month={Apr},  pages={323–329} }