@article{bertero_hallak_gromatzky_lucon_arap_2005,  title={Assessment of sexual function in patients undergoing vasectomy using the international index of erectile function},  volume={31},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-55382005000500006},  DOI={10.1590/S1677-55382005000500006},  number={5},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  author={Bertero, Eduardo and Hallak, Jorge and Gromatzky, Celso and Lucon, Antonio M. and Arap, Sami},  year={2005},  month={Sep},  pages={452–458} }