Columbia subject headings:
Harvard subject headings:
Medical care--United States--Periodicals.
Medical care--United States--Statistics--Periodicals
Medical economics--United States--Periodicals.
United States--Statistics, Medical--Periodicals.
Princeton subject headings:
Medical care--United States--Periodicals.
Medical care--United States--Statistics--Periodicals.
Medical economics--United States--Periodicals.
Periodicals.
Statistics.
United States--Statistics, Medical--Periodicals.