@article{feitosa_lopes_bonfa_halpern_2016,  title={A prospective study predicting the outcome of chronic low back pain and physical therapy: the role of fear-avoidance beliefs and extraspinal pain},  volume={56},  ISSN={0482-5004},  url={https://doi.org/10.1016/j.rbre.2016.03.002},  DOI={10.1016/j.rbre.2016.03.002},  number={5},  journal={Revista Brasileira de Reumatologia},  publisher={Sociedade Brasileira de Reumatologia},  author={Feitosa, Aloma S.A. and Lopes, Jaqueline Barros and Bonfa, Eloisa and Halpern, Ari S.R.},  year={2016},  month={Sep},  pages={384–390} }