Nunes, B. P.; Thumé, E.; Tomasi, E.; Duro, S. M. S.; Facchini, L. A. Socioeconomic Inequalities in the Access to and Quality of Health Care Services. Rev. saúde pública 2014, 48 (6), 968-976. https://doi.org/10.1590/S0034-8910.2014048005388.