@article{boing_bertoldi_barros_posenato_peres_2014,  title={Socioeconomic inequality in catastrophic health expenditure in Brazil},  volume={48},  ISSN={0034-8910},  url={https://doi.org/10.1590/S0034-8910.2014048005111},  DOI={10.1590/S0034-8910.2014048005111},  number={4},  journal={Revista de Saúde Pública},  publisher={Faculdade de Saúde Pública da Universidade de São Paulo},  author={Boing, Alexandra Crispim and Bertoldi, Andréa Dâmaso and Barros, Aluísio Jardim Dornellas de and Posenato, Leila Garcia and Peres, Karen Glazer},  year={2014},  month={Aug},  pages={632–641} }