From the Centers for Disease Control and Prevention. Tobacco use and usual source of cigarettes among high school students--United States, 1995.
D000293:Adolescent; D003132:Commerce / Q000331:legislation & jurisprudence / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D012907:Smoking / Q000453:epidemiology / Q000639:trends*; D013334:Students; D014030:Tobacco, Smokeless / Q000600:supply & distribution*; D014481:United States / Q000453:epidemiology