title: [Let us not forget what is singular and contingent...].
authors.affiliation: Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro. kenneth@uerj.br
authors.forename: Kenneth Rochel
authors.initials: KR
authors.lastname: de Camargo
mesh_terms: D001938:Brazil; D018673:Nutrition Policy; D052756:Nutritional Sciences; D011634:Public Health