title: Starting to smoke too easily, starting to smoke too young.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Morabia
authors.forename: Michael C
authors.initials: MC
authors.lastname: Costanza
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D003431:Cross-Cultural Comparison; D014943:Global Health; D006801:Humans; D011159:Population Surveillance; D015995:Prevalence; D012907:Smoking / Q000453:epidemiology*; D000074606:Smoking Prevention; D019460:Tobacco Industry; D014029:Tobacco Use Disorder / Q000453:epidemiology* / Q000517:prevention & control