@article{noriega_hirotani_2015,  title={Risk and radiation exposure in orthopedic surgery of the spine in
               Mexico},  volume={14},  ISSN={1808-1851},  url={https://doi.org/10.1590/S1808-1851201514010R126},  DOI={10.1590/S1808-1851201514010R126},  number={1},  journal={Coluna/Columna},  publisher={Sociedade Brasileira de Coluna},  author={Noriega, Fernando Ivan Zaragoza and Hirotani, Fernando Hiramuro},  year={2015},  month={Jan},  pages={41–44} }