Columbia subject headings:
Eugenics--Germany--History.
Euthanasia--Germany--History.
National socialism.
Harvard subject headings:
Euthanasia--Government policy--Germany--History--20th century.
Involuntary sterilization--Government policy--Germany--History--20th century.
Medical ethics--Government policy--Germany--History--20th century.
National socialism--Moral and ethical aspects--History.
Princeton subject headings:
Eugenics--Germany--History.
Euthanasia--Germany--History.
National socialism.