Columbia subject headings:
Harvard subject headings:
Cardiac arrest--Law and legislation--United States.
Cardiac arrest--Treatment--United States.
Defibrillators--United States.
Emergency medical services--Law and legislation--United States
Princeton subject headings:
Cardiac arrest--Law and legislation--United States.
Cardiac arrest--Treatment--United States.
Defibrillators--United States.
Emergency medical services--Law and legislation--United States.