@article{gotfryd_valesin filho_viola_lenza_silva_emi_tomiosso_piccinato_antonioli_ferretti_2015,  title={Analysis of epidemiology, lifestyle, and psychosocial factors in patients with back pain admitted to an orthopedic emergency unit},  volume={13},  ISSN={1679-4508},  url={https://doi.org/10.1590/S1679-45082015AO3320},  DOI={10.1590/S1679-45082015AO3320},  number={2},  journal={einstein (São Paulo)},  publisher={Instituto Israelita de Ensino e Pesquisa Albert Einstein},  author={Gotfryd, Alberto Ofenhejm and Valesin Filho, Edgar Santiago and Viola, Dan Carai Maia and Lenza, Mario and Silva, Joselito Adriano da and Emi, Angélica Santos and Tomiosso, Raylton and Piccinato, Carla de Azevedo and Antonioli, Eliane and Ferretti, Mario},  year={2015},  month={Apr},  pages={243–248} }