Columbia subject headings:
Medical care, Cost of--United States--Statistics--Periodicals.
Medical care--Utilization--United States--Statistics--Periodicals.
Medicare--Statistics--Periodicals.
Harvard subject headings:
Medical care, Cost of--United States--Statistics--Periodicals
Medical care--Utilization--United States--Statistics--Periodicals.
Medicare--Statistics--Periodicals.
Princeton subject headings:
Medical care, Cost of--United States--Statistics--Periodicals.
Medical care--United States--Utilization--Statistics--Periodicals.
Medicare--Statistics--Periodicals.
Periodicals.
Statistics.