From the Centers of Disease Control. Cigarette smoking among adults--United States, 1988.
D000328:Adult; D000368:Aged; D004522:Educational Status; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012309:Risk-Taking; D012907:Smoking / Q000453:epidemiology* / Q000208:ethnology; D014481:United States / Q000453:epidemiology