Teen smoking and R-rated movies.
D000293:Adolescent; D000294:Adolescent Behavior; D001741:Black or African American / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D009040:Motion Pictures; D012907:Smoking / Q000208:ethnology* / Q000523:psychology*; D013690:Television; D044465:White People / Q000523:psychology