Sicsú, Bernardo, Maria de Fátima Siliansky de Andreazzi, and Tássia Gazé Holguin. 2008. “Tax Expenditures With Healthcare in Brazil: The Behavior Between the Years 1996 and 2003”. Brazilian Journal of Political Economy 28 (4):631-47. https://centrodeeconomiapolitica.org/repojs/index.php/journal/article/view/546.