@article{teivelis_faintuch_ishida_sakai_bresser_gama-rodrigues_2007,  title={Endoscopic and ultrasonographic evaluation before and after Roux-en-Y gastric bypass for morbid obesity},  volume={44},  ISSN={0004-2803},  url={https://doi.org/10.1590/S0004-28032007000100003},  DOI={10.1590/S0004-28032007000100003},  number={1},  journal={Arquivos de Gastroenterologia},  publisher={Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. },  author={Teivelis, Marcelo Passos and Faintuch, Joel and Ishida, Robson and Sakai, Paulo and Bresser, Adriano and Gama-Rodrigues, Joaquim},  year={2007},  month={Jan},  pages={8–13} }