title: Effect of the age at which smoking begins on frequency of smoking in adulthood.
authors.forename: E
authors.initials: E
authors.lastname: Taioli
authors.forename: E L
authors.initials: EL
authors.lastname: Wynder
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D012907:Smoking / Q000453:epidemiology