@article{martins_sousa_portela_tigre_gonçalves_castro filho_2012,  title={Exogenous ochronosis: case report and literature review},  volume={87},  ISSN={0365-0596},  url={https://doi.org/10.1590/S0365-05962012000400021},  DOI={10.1590/S0365-05962012000400021},  number={4},  journal={Anais Brasileiros de Dermatologia},  publisher={Sociedade Brasileira de Dermatologia},  author={Martins, Viviane Maria Rocha and Sousa, Antônio Renê Diógenes de and Portela, Natália de Carvalho and Tigre, Celina Aguiar Frota and Gonçalves, Lucidi Maria Saraiva and Castro Filho, Rômulo José de Lucena},  year={2012},  month={Jul},  pages={633–636} }