Past 15-year trends in adolescent marijuana use: Differences by race/ethnicity and sex.
Johnson RM, Fairman B, Gilreath T, Xuan Z, Rothman EF, Parnham T, Furr-Holden CD. Past 15-year trends in adolescent marijuana use: Differences by race/ethnicity and sex. Drug Alcohol Depend. 2015 Oct 01; 155:8-15.