[Prevalence of cigarette smoking among schoolchildren: Quebec, 1978].
D000293:Adolescent; D002648:Child; D005260:Female; D006266:Health Education; D006801:Humans; D008297:Male; D011792:Quebec; D012494:Sampling Studies; D012737:Sex Factors; D012907:Smoking
Prévalence de l'usage de la cigarette en milieu scolaire: Québec, 1978.