Biazoli, Leonardo, and Izabela Regina Cardoso de Oliveira. “Impacts of the COVID-19 Pandemic on Health Insurance in Southeastern Brazil: An Interrupted Time Series Analysis”. Sigmae 13, no. 1 (April 11, 2024): 45–50. Accessed November 23, 2024. https://publicacoes.unifal-mg.edu.br/revistas/index.php/sigmae/article/view/2263.