Columbia subject headings:
Harvard subject headings:
Drug abuse--United States--Statistics
High school seniors--Drug use--United States--Statistics.
High school students--Drug use--United States--Statistics.
Young adults--Drug use--United States--Statistics.
Youth--Drug use--United States--Statistics.
Princeton subject headings:
High school seniors--Drug use--United States--Statistics.
Statistics.
Young adults--Drug use--United States--Statistics.
Youth--Drug use--United States--Statistics.