@article{lucena_barros_2018,  title={PRE-OPERATIVE BILIARY DRAINAGE IN THE PERIAMPULLARY NEOPLASIA - A SYSTEMATIC REVIEW},  volume={31},  ISSN={0102-6720},  url={https://doi.org/10.1590/0102-672020180001e1372},  DOI={10.1590/0102-672020180001e1372},  number={2},  journal={ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)},  publisher={Colégio Brasileiro de Cirurgia Digestiva},  author={LUCENA, Gustavo Costa Marques de and BARROS, Rinaldo Antunes},  year={2018},  pages={e1372} }