MagalhãesM. J. da S. de, SilvaS. A. M. D., VieiraF. E. A., LimaS. C. M. de, MaurícioT. M. C., VieiraT. de S., & OlivaH. N. P. (2019). Social security expenses with patients with back pain by the National Institute of Social Security of Brazil from 2008 to 2014. Revista Eletrônica Acervo Saúde, 11(5), e233. https://doi.org/10.25248/reas.e233.2019