@article{provenza_pollak_martinez_paiva_helfenstein_heymann_matos_souza_2004,  title={Fibromialgia},  volume={44},  ISSN={0482-5004},  url={https://www.scielo.br/j/rbr/a/xKmjCGfP8SQnPqngfQ9CS7w/},  number={6},  journal={Revista Brasileira de Reumatologia},  publisher={Sociedade Brasileira de Reumatologia},  author={Provenza, JR and Pollak, DF and Martinez, JE and Paiva, ES and Helfenstein, M and Heymann, R and Matos, JMC and Souza, EJR},  year={2004},  month={Nov},  pages={443–449} }