Boing, A. C.; Bertoldi, A. D.; Barros, A. J. D. de; Posenato, L. G.; Peres, K. G. Socioeconomic Inequality in Catastrophic Health Expenditure in Brazil . Rev. saúde pública 2014, 48 (4), 632-641. https://doi.org/10.1590/S0034-8910.2014048005111.