Depintor, J. D. P., Bracher, E. S. B., Cabral, D. M. C., & Eluf-Neto, J. (2016). Prevalence of chronic spinal pain and identification of associated factors in a sample of the population of São Paulo, Brazil: cross-sectional study. São Paulo Medical Journal, 134(5), 375–384. Retrieved from https://periodicosapm.emnuvens.com.br/spmj/article/view/1138