Fonseca, Poty Colaço, and Marco Aurélio Marques Ferreira. “ Investigation of Efficiency Levels in the Use of Resources in the Health Sector: An Analysis of the Micro-Regions of Minas Gerais ”. Saúde e Sociedade 18, no. 2 (June 1, 2009): 199–213. Accessed June 18, 2024. https://revistas.usp.br/sausoc/article/view/29592.