@article{farias_torres filho_falavigna_silva_cristante_defino_risso neto_pittelli_bernardo_achar filho_et al._2026,  title={BARRIERS IMPOSED BY SUPPLEMENTARY HEALTH ON SPINE SURGERY IN BRAZIL: AN ANALYSIS FROM THE PERSPECTIVE OF SURGEONS},  volume={25},  ISSN={1808-1851},  url={https://doi.org/10.1590/S1808-185120262501301267},  DOI={10.1590/S1808-185120262501301267},  number={1},  journal={Coluna/Columna},  publisher={Sociedade Brasileira de Coluna},  author={FARIAS, RONALD DE LUCENA and TORRES FILHO, TARCISIO MARCONI NOVAES and FALAVIGNA, ASDRUBAL and SILVA, LUIS EDUARDO CARELLI TEIXEIRA DA and CRISTANTE, ALEXANDRE FOGAçA and DEFINO, HELTON LUIZ APARECIDO and RISSO NETO, MARCELO ITALO and PITTELLI, SERGIO DOMINGOS and BERNARDO, WANDERLEY MARQUES and ACHAR FILHO, EDUARDO and AILY, JESSICA BIANCA and MEVES, ROBERT},  year={2026},  pages={e301267} }