@article{castro_gomes_padovan_oliveira_marchini_2004,  title={Urea breath test for the detection of Helicobacter pylori using a stable isotope (13C)},  volume={40},  ISSN={1676-2444},  url={https://doi.org/10.1590/S1676-24442004000200003},  DOI={10.1590/S1676-24442004000200003},  number={2},  journal={Jornal Brasileiro de Patologia e Medicina Laboratorial},  publisher={Sociedade Brasileira de Patologia Clínica,   },  author={Castro, Ana Paula Werneck de and Gomes, Ana Thereza Britto and Padovan, Gilberto João and Oliveira, Ricardo Brandt de and Marchini, Julio Sérgio},  year={2004},  month={Apr},  pages={63–67} }