Columbia subject headings:
Harvard subject headings:
Medical policy--Germany--Prussia--History--19th century.
Medical policy--Germany--Prussia--History--20th century.
Nursing--Germany--Prussia--History--19th century.
Nursing--Germany--Prussia--History--20th century.
Princeton subject headings:
Medical policy--Germany--Prussia--History--19th century.
Medical policy--Germany--Prussia--History--20th century.
Nursing--Germany--Prussia--History--19th century.
Nursing--Germany--Prussia--History--20th century.