Columbia subject headings:
Abortion--Moral and ethical aspects--Congresses.
Fetus--Research--Moral and ethical aspects--Congresses.
Harvard subject headings:
Abortion--Moral and ethical aspects--Congresses.
Conference papers and proceedings
Fetus--Research--Moral and ethical aspects--Congresses.
Princeton subject headings:
Abortion--Moral and ethical aspects--Congresses.
Fetus--Research--Moral and ethical aspects--Congresses.