Columbia subject headings:
Harvard subject headings:
Aktion T4 (Germany)--Congresses.
Children--Crimes against--Germany--History--Congresses.
Euthanasia--History--20th century--Congresses.
Involuntary sterilization--History--20th century--Congresses.
National socialism and medicine--Congresses.
Sick--Crimes against--Germany--History--Congresses.
Princeton subject headings:
Collective memory--Germany--Congresses.
Euthanasia--Germany--History--20th century--Congresses.
National socialism and medicine--Congresses.
National socialism--Moral and ethical aspects--Congresses.