@article{oliveira_kanas_wajchenberg_2021,  title={TREATMENT OF NON-SPECIFIC CHRONIC LOW BACK PAIN: RESISTANCE TRAINING WITH OR WITHOUT USING WEIGHTS?},  volume={27},  ISSN={1517-8692},  url={https://doi.org/10.1590/1517-8692202127062020_0121},  DOI={10.1590/1517-8692202127062020_0121},  number={6},  journal={Revista Brasileira de Medicina do Esporte},  publisher={Sociedade Brasileira de Medicina do Exercício e do Esporte},  author={Oliveira, Camila Teixeira de and Kanas, Michel and Wajchenberg, Marcelo},  year={2021},  month={Nov},  pages={603–609} }