[Prevalence of smoking in adolescents in the 3d year of high school].
D000124:Achievement; D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D002677:Chile; D005260:Female; D006801:Humans; D008297:Male; D012907:Smoking; D012917:Social Adjustment
Prevalencia de tabaquismo en adolescentes del tercer año de la enseñanza media.