@article{assef_melo_araki_marioni_2015,  title={EVALUATION OF UPPER GASTROINTESTINAL ENDOSCOPY IN PATIENTS UNDERGOING BARIATRIC SURGERY},  volume={28},  ISSN={0102-6720},  url={https://doi.org/10.1590/S0102-6720201500S100012},  DOI={10.1590/S0102-6720201500S100012},  journal={ABCD. Arquivos Brasileiros de Cirurgia Digestiva (São Paulo)},  publisher={Colégio Brasileiro de Cirurgia Digestiva},  author={ASSEF, Maurício Saab and MELO, Tiago Torres and ARAKI, Osvaldo and MARIONI, Fábio},  year={2015},  pages={39–42} }