Columbia subject headings:
World War, 1914-1918--Medical care.
World War, 1914-1918--Prisoners and prisons.
Harvard subject headings:
World War, 1914-1918--Medical and sanitary affairs.
World War, 1914-1918--Medical care
World War, 1914-1918--Prisoners and prisons.
Princeton subject headings:
World War, 1914-1918--Medical care.
World War, 1914-1918--Prisoners and prisons.