Columbia subject headings:
Harvard subject headings:
Medical care, Cost of--United States
Medical economics--United States.
Medicare.
Older people--Medical care--United States--Quality control.
United States. Health Care Financing Administration.
United States. Medicare Bureau.
Princeton subject headings:
Medical care, Cost of--United States.
Medical economics--United States.
Medicare.
Older people--Medical care--United States--Quality control.
United States. Health Care Financing Administration
United States. Medicare Bureau