Columbia subject headings:
Psychiatry--Germany--History--20th century.
Schizophrenia--Germany--History--20th century.
Harvard subject headings:
Psychiatry--Germany--History--20th century.
Schizophrenia--Germany--History--20th century.
Princeton subject headings:
Psychiatry--Germany--History--20th century.
Schizophrenia--Germany--History--20th century.