title: [Social solidarity, a necessary utopia].
authors.affiliation: Departamento de Planejamento e Administração em Saúde, Instituto de Medicina Social, UERJ. kenneth@uerj.br
authors.forename: Kenneth Rochel de
authors.initials: KR
authors.lastname: Camargo
mesh_terms: D000368:Aged; D001938:Brazil; D006801:Humans; D011157:Population Dynamics; D012961:Sociology; D014601:Utopias