@article{techy_siena_helfenstein jr._2009,  title={O exercício legal da medicina em LER/DORT},  volume={49},  ISSN={0482-5004},  url={https://doi.org/10.1590/S0482-50042009000400014},  DOI={10.1590/S0482-50042009000400014},  number={4},  journal={Revista Brasileira de Reumatologia},  publisher={Sociedade Brasileira de Reumatologia},  author={Techy, Antonio and Siena, Cesar and Helfenstein Jr., Milton},  year={2009},  month={Jul},  pages={473–479} }