Columbia subject headings:
Competition--United States.
Health care reform--United States.
Managed care plans (Medical care)--Law and legislation--United States.
Medical care--Cost control--Law and legislation--United States.
Medical policy--United States.
Harvard subject headings:
Princeton subject headings:
Competition--United States.
Health care reform--United States.
Managed care plans (Medical care)--Law and legislation--United States.
Medical care--Cost control--Law and legislation--United States.