title: [Packs per year: the name of this index has to be changed].
authors.forename: Lluís
authors.initials: L
authors.lastname: Fumadó
authors.forename: Jordi
authors.initials: J
authors.lastname: Delás
mesh_terms: D006801:Humans; D012720:Severity of Illness Index; D012907:Smoking / Q000453:epidemiology*; D009626:Terminology as Topic; D014029:Tobacco Use Disorder / Q000453:epidemiology*