@article{husein-elahmed_torres-puchol_2013,  title={Erythema and nipple retraction: a sign of concern},  volume={59},  ISSN={0104-4230},  url={https://doi.org/10.1016/j.ramb.2013.04.002},  DOI={10.1016/j.ramb.2013.04.002},  number={3},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Husein-ElAhmed, Husein and Torres-Puchol, Valeriano Garrido},  year={2013},  month={May},  pages={218–219} }