Columbia subject headings:
Human cloning--Moral and ethical aspects--United States.
Human reproductive technology--Moral and ethical aspects--United States.
Stem cells--Research--Moral and ethical aspects--United States.
Harvard subject headings:
Human cloning--Moral and ethical aspects--United States.
Human cloning--Research--Law and legislation--United States.
Human reproductive technology--Moral and ethical aspects--United States.
Stem cells--Research--Moral and ethical aspects--United States.
Princeton subject headings:
Human cloning--Research--Law and legislation--United States.
Human reproductive technology--Moral and ethical aspects--United States.
Stem cells--Research--Moral and ethical aspects--United States.