Columbia subject headings:
Drug abuse--Study and teaching--United States.
Drug abuse--Treatment--United States.
Drug abuse--United States--Prevention.
Drug control--United States.
Harvard subject headings:
Drug abuse--Study and teaching--United States
Drug abuse--Treatment--United States
Drug abuse--United States--Prevention
Drug control--United States
Princeton subject headings:
Drug abuse--Study and teaching--United States.
Drug abuse--Treatment--United States.
Drug abuse--United States--Prevention.
Drug control--United States.