Silva, Nilza N da, Glaura C Pedroso, Rosana F Puccini, and Wellington J Furlani. 2000. “ Social Inequalities and Health Services Use: Evidences from a Stratified Household Survey ”. Revista De Saúde Pública 34 (1): 44-49. https://doi.org/10.1590/S0034-89102000000100009.