@article{carmo_caliman_2020,  title={Purple urine bag syndrome: case report},  volume={18},  ISSN={1679-4508},  url={https://doi.org/10.31744/einstein_journal/2020RC5063},  DOI={10.31744/einstein_journal/2020RC5063},  journal={einstein (São Paulo)},  publisher={Instituto Israelita de Ensino e Pesquisa Albert Einstein},  author={Carmo, Felipe Poubel Timm do and Caliman, Alexandre Oliosi},  year={2020},  pages={eRC5063} }