@article{simão_helms_richardson_2012,  title={Magnetic resonance imaging findings of disc-related epidural cysts in nonsurgical and postoperative microdiscectomy patients},  volume={45},  ISSN={0100-3984},  url={https://doi.org/10.1590/S0100-39842012000400005},  DOI={10.1590/S0100-39842012000400005},  number={4},  journal={Radiologia Brasileira},  publisher={Publicação do Colégio Brasileiro de Radiologia e Diagnóstico por Imagem},  author={Simão, Marcelo Novelino and Helms, Clyde A. and Richardson, William J.},  year={2012},  month={Jun},  pages={205–209} }