Columbia subject headings:
Alcoholism--Economic aspects--United States.
Drug abuse--Economic aspects--United States.
Medical care, Cost of--United States.
Harvard subject headings:
Alcoholism--Economic aspects--United States.
Drug abuse--Economic aspects--United States.
Medical care, Cost of--United States
Princeton subject headings:
Alcoholism--Economic aspects--United States.
Drug abuse--Economic aspects--United States.
Medical care, Cost of--United States.