Columbia subject headings:
Harvard subject headings:
Euthanasia--Germany--History.
Euthanasia--Germany--Münster--History--20th century.
Involuntary sterilization--Germany--Münster--History--20th century.
Mentally ill--Institutional care--Germany--History.
National socialism--Moral and ethical aspects.
People with mental disabilities--Germany--Münster--History--20th century.
Princeton subject headings:
Euthanasia--Germany--History.
Mentally ill--Institutional care--Germany--History.