Columbia subject headings:
Drugs--Prices--Law and legislation--United States.
Managed care plans (Medical care)--Government policy--United States.
Older people--Medical care--Government policy--United States.
Harvard subject headings:
Drugs--Prices--Law and legislation--United States.
Managed care plans (Medical care)--Government policy--United States.
Older people--Medical care--Government policy--United States.
Princeton subject headings: