@article{caputo_souza_häfele_siqueira_2022,  title={Back pain prevalence and associated factors in Brazilian Unified Health System users},  volume={5},  ISSN={2595-3192},  url={https://doi.org/10.5935/2595-0118.20220022},  DOI={10.5935/2595-0118.20220022},  number={2},  journal={BrJP},  publisher={Sociedade Brasileira para o Estudo da Dor},  author={Caputo, Eduardo L and Souza, Daniele Fernandes da Silva de and Häfele, Vitor and Siqueira, Fernando Carlos Vinholes},  year={2022},  month={Apr},  pages={137–142} }