Columbia subject headings:
Mental health services--United States--Statistics--Periodicals.
United States--Statistics, Medical--Periodicals.
Harvard subject headings:
Mental health services--United States--Statistics--Periodicals.
United States--Statistics, Medical--Periodicals.
Princeton subject headings:
Mental health services--United States--Statistics--Periodicals.
Periodicals.
Statistics.
United States--Statistics, Medical--Periodicals.