Columbia subject headings:
Harvard subject headings:
Military service, Voluntary--Germany--History--20th century.
Nursing services--Germany--History--20th century.
Nursing--Germany--History--20th century.
World War, 1914-1918--Germany--Medical care.
Princeton subject headings:
Medicine, Military--Germany--History.
Military hospitals--Germany--History.
Military nursing--Germany--History.
World War, 1914-1918--Germany.
World War, 1914-1918.