Columbia subject headings:
Death--Proof and certification--United States.
Right to die--Law and legislation--United States.
Terminal care--Law and legislation--United States.
Harvard subject headings:
Death--Proof and certification--United States.
Right to die--Law and legislation--United States
Terminal care--Law and legislation--United States.
Princeton subject headings:
Death--Proof and certification--United States.
Right to die--Law and legislation--United States.
Terminal care--Law and legislation--United States.