GŁOS, A. Solidarity, Equality and the Problem of Private Health Insurance (in Polish). Diametros, [S. l.], n. 51, p. 28–47, 2017. DOI: 10.13153/diam.51.2017.1030. Disponível em: https://diametros.uj.edu.pl/diametros/article/view/1030. Acesso em: 20 jan. 2022.