@article{sarhan_helaly_otay_ghanbar_nakshabandi_2018,  title={Isolated low grade prenatally detected unilateral hydronephrosis: do we need long term follow-up?},  volume={44},  ISSN={1677-5538},  url={https://doi.org/10.1590/S1677-5538.IBJU.2017.0474},  DOI={10.1590/S1677-5538.IBJU.2017.0474},  number={4},  journal={International braz j urol},  publisher={Sociedade Brasileira de Urologia},  author={Sarhan, Osama M. and Helaly, Ahmed El and Otay, Abdulhakim Al and Ghanbar, Mustafa Al and Nakshabandi, Ziad},  year={2018},  month={Jul},  pages={812–818} }