[Use of cigarettes among adolescents of a 1st grade school in the city of São Paulo, Brazil].
D000293:Adolescent; D000367:Age Factors; D001938:Brazil; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology*; D000074606:Smoking Prevention; D013334:Students
Uso de cigarros entre adolescentes de uma escola de 1st grau da cidade de São Paulo, Brasil.