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. Author manuscript; available in PMC: 2009 Sep 10.
Published in final edited form as: Popul Dev Rev. 2000;26(3):565–581. doi: 10.1111/j.1728-4457.2000.00565.x

FIGURE 1.

FIGURE 1

Age-specific death rates for influenza and pneumonia combined, males (solid) and females (dotted), 1917 and 1918

SOURCE: US Department of Health, Education, and Welfare 1956.