Columbia subject headings:
Alcoholism--Treatment--Statistics.
Alcoholism--Treatment--United States.
Alcoholism--United States.
Drug abuse--Treatment--Statistics.
Drug abuse--Treatment--United States.
Drug abuse--United States.
Mental health services--United States.
Mental illness--United States.
Mentally ill--Care--Statistics.
Harvard subject headings:
Alcoholism--Treatment--United States.
Alcoholism--United States.
Drug abuse--Treatment--United States
Drug abuse--United States
Mental health services--United States.
Mental illness--United States.
Princeton subject headings: