Columbia subject headings:
Antitrust law--United States.
Health insurance--Law and legislation--United States.
Medical care--Cost control--Law and legislation--United States.
National health insurance--Law and legislation--United States.
Harvard subject headings:
Antitrust law--United States
Health insurance--Law and legislation--United States
Medical care--Cost control--Law and legislation--United States
National health insurance--Law and legislation--United States
Princeton subject headings:
Antitrust law--United States.
Health insurance--Law and legislation--United States.
Medical care--Cost control--Law and legislation--United States.
National health insurance--Law and legislation--United States.