Columbia subject headings:
Fetus--Social aspects.
Human embryo--Social aspects.
Social medicine.
Harvard subject headings:
Fetus--Legal status, laws, etc.
Fetus--Social aspects.
Human embryo--Religious aspects
Human embryo--Social aspects.
Human reproductive technology--Moral and ethical aspects
Social medicine
Princeton subject headings:
Fetus--Social aspects.
Human embryo--Social aspects.
Social medicine.