Nunes, B. P., Thumé, E., Tomasi, E., Duro, S. M. S., & Facchini, L. A. (2014). Socioeconomic inequalities in the access to and quality of health care services. Revista De Saúde Pública, 48(6), 968-976. https://doi.org/10.1590/S0034-8910.2014048005388