title: [Quitting smoking and social equity].
authors.forename: Susana
authors.initials: S
authors.lastname: Sans
authors.forename: Guillermo
authors.initials: G
authors.lastname: Paluzíe
mesh_terms: D006801:Humans; D012907:Smoking / Q000453:epidemiology*; D016540:Smoking Cessation / Q000706:statistics & numerical data*; D012923:Social Class; D013030:Spain