Columbia subject headings:
Abortion--Law and legislation--United States.
Fetus.
Mother and child--United States.
Unborn children (Law)--United States.
Harvard subject headings:
Abortion--Law and legislation--United States
Abortion.
Fetus.
Mother and child--United States
Unborn children (Law)--United States.
Princeton subject headings:
Abortion--Law and legislation--United States.
Fetus.
Mother and child--United States.
Unborn children (Law)--United States.