@article{2003,  title={Endourology & laparoscopy},  volume={29},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-55382003000200015},  DOI={10.1590/S1677-55382003000200015},  number={2},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  year={2003},  month={Mar},  pages={169–171} }