Columbia subject headings:
United States--History--Civil War, 1861-1865--Medical care.
United States--History--Civil War, 1861-1865--Statistics.
Harvard subject headings:
Diseases--Causes and theories of causation
United States--History--Civil War, 1861-1865--Health aspects.
United States--History--Civil War, 1861-1865--Medical care.
United States--History--Civil War, 1861-1865--Prisoners and prisons.
United States--History--Civil War, 1861-1865--Statistics.
United States--Statistics, Medical.
United States. Army--Medical examinations.
Princeton subject headings: