Columbia subject headings:
Holocaust, Jewish (1939-1945)
National socialism.
Harvard subject headings:
Holocaust, Jewish (1939-1945)
Jews--Germany--History--1933-1945.
Mentally ill--Treatment--Germany--History--20th century.
National socialism.
Nationalsozialistische Deutsche Arbeiter-Partei--Views on mental illness.
Romani Genocide, 1939-1945
Princeton subject headings:
Holocaust, Jewish (1939-1945)
National socialism.