@article{luna_villarreal_villazón_salgado_valerio_2018,  title={PREOPERATIVE PROTOCOL AND MORBIMORTALITY IN CERVICAL SURGERY WITH ANTERIOR APPROACH},  volume={17},  ISSN={1808-1851},  url={https://doi.org/10.1590/S1808-185120181702190989},  DOI={10.1590/S1808-185120181702190989},  number={2},  journal={Coluna/Columna},  publisher={Sociedade Brasileira de Coluna},  author={Luna, Luis Muñiz and Villarreal, Edgar García and Villazón, Fernando Guevara and Salgado, Yadira Bahena and Valerio, Mario Alonso Ciénega},  year={2018},  month={Apr},  pages={90–94} }