Very little research has been done into its cause among adolescents and adults.

The changes in behavior among adolescents can be contributed to the role model effect of the women leaders.

Experimentation of this sort is more common among adolescents (or just after), both male and female.

The growing media frenzy only served to increase the demand for such material among adolescents.

The book was popular among children and adolescents in the early to mid-1990s.

Among adolescents in such families, the researchers say, mental health may actually have improved.

But there is still far more drug use among adolescents and young adults than 20 years ago.

The increase has been especially dramatic among children, adolescents, and older people.

He said today's report about the jump in homicide among adolescents might actually include some good news.

Adults thought that drugs were more pervasive among adolescents than young people themselves did.