@article{korkes_silva ii_heilberg_2011,  title={Costs for in hospital treatment of urinary lithiasis in the Brazilian public health system},  volume={9},  ISSN={1679-4508},  url={https://doi.org/10.1590/S1679-45082011GS2143},  DOI={10.1590/S1679-45082011GS2143},  number={4},  journal={einstein (São Paulo)},  publisher={Instituto Israelita de Ensino e Pesquisa Albert Einstein},  author={Korkes, Fernando and Silva II, Jarques Lúcio da and Heilberg, Ita Pfeferman},  year={2011},  month={Oct},  pages={518–522} }