@article{oliveira_buso_siqueira filho_moraes_oliveira_oliveira_salomão_1997,  title={Peptic disease and Helicobacter pylori are highly prevalent in patients with the indeterminate form of chagas’ disease: report of 21 cases},  volume={39},  ISSN={0036-4665},  url={https://doi.org/10.1590/S0036-46651997000400005},  DOI={10.1590/S0036-46651997000400005},  number={4},  journal={Revista do Instituto de Medicina Tropical de São Paulo},  publisher={Instituto de Medicina Tropical de São Paulo},  author={OLIVEIRA, Luiz Carlos Marques de and BUSO, Abadia Gilda and SIQUEIRA FILHO, Luiz and MORAES, Flávia and OLIVEIRA, Humberto Alves and OLIVEIRA, Roseli Maria and SALOMÃO, Eliana Chaves},  year={1997},  month={Jul},  pages={209–212} }