@article{sharma_sharma_tyagi_devana_mavuduru_bora_singh_2021,  title={Safety and efficacy of “on-demand” tramadol in patients with premature ejaculation: an updated meta-analysis},  volume={47},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-5538.IBJU.2020.0561},  DOI={10.1590/S1677-5538.IBJU.2020.0561},  number={5},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  author={Sharma, Aditya Prakash and Sharma, Gopal and Tyagi, Shantanu and Devana, Sudheer K. and Mavuduru, Ravimohan S. and Bora, Girdhar S. and Singh, Shrawan K.},  year={2021},  month={Sep},  pages={921–934} }