@article{bigal_bigal_bordini_speciali_2001, title={Prevalence and costs of headaches for the public health system in a town in the interior of the state of São Paulo}, volume={59}, ISSN={0004-282X}, url={https://doi.org/10.1590/S0004-282X2001000400005}, DOI={10.1590/S0004-282X2001000400005}, number={3A}, journal={Arquivos de Neuro-Psiquiatria}, publisher={Academia Brasileira de Neurologia - ABNEURO}, author={Bigal, Marcelo E. and Bigal, Janaína O.M. and Bordini, Carlos A. and Speciali, José G.}, year={2001}, month={Sept}, pages={504–511} }