Columbia subject headings:
Euthanasia--Germany--History--20th century.
Killing of the mentally ill--Germany--History--20th century.
Mentally ill--Abuse of--Germany--History--20th century.
National socialism and medicine.
Harvard subject headings:
Euthanasia--Germany--History--20th century
Human experimentation in medicine--Germany--History--20th century
Killing of the mentally ill--Germany--History--20th century.
Medical ethics--Germany--History--20th century
Mentally ill--Abuse of--Germany--History--20th century
Motion pictures in medicine--Germany--History.
National socialism and medicine
World War, 1939-1945--Atrocities
Princeton subject headings:
Euthanasia--Germany--History--20th century.
Killing of the mentally ill--Germany--History--20th century.
Mentally ill--Abuse of--Germany--History--20th century.
National socialism and medicine--Germany--History--20th century.