title: [Prevalence and characteristics of the use of some toxics among secondary school students in Santiago, Chile [author's transl].
mesh_terms: D000293:Adolescent; D000434:Alcoholic Beverages; D002188:Cannabis; D002677:Chile; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors; D012907:Smoking; D012959:Socioeconomic Factors; D019966:Substance-Related Disorders / Q000453:epidemiology*
vernacular_title: Prevalencia y características del consumo de algunas sustancias químicas en estudiantes de enseñanza media en Santiago de Chile.