@article{el-haggar_mostafa_allah_akef_2018,  title={Levetiracetam and lamotrigine effects as mono- and polytherapy on bone mineral density in epileptic patients},  volume={76},  ISSN={0004-282X},  url={https://doi.org/10.1590/0004-282X20180068},  DOI={10.1590/0004-282X20180068},  number={7},  journal={Arquivos de Neuro-Psiquiatria},  publisher={Academia Brasileira de Neurologia - ABNEURO},  author={El-Haggar, Sahar Mohamed and Mostafa, Tarek Mohamed and Allah, Horeya Mohamed Sad and Akef, Ghada Hassan},  year={2018},  month={Jul},  pages={452–458} }