Boing, A. C., A. D. Bertoldi, L. G. Posenato, and K. G. Peres. “ The Influence of Health Expenditures on Household Impoverishment in Brazil ”. Revista De Saúde Pública, vol. 48, no. 5, Oct. 2014, pp. 797-0, doi:10.1590/S0034-8910.2014048005113.