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Track the scientific developments that contributed to society's understanding and use of blood. In this section, learn about the progression from humoral medicine practiced by the Greeks to the discovery that blood circulates within the body; from the first attempts at transfusing blood into humans to the identification of blood groups; from the advancements in blood storage and distribution, propelled by the needs of war, to the development of tests that protect against infected blood.
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Photos: Galen, diagram of blood circulation (detail),
and AIDS poster (detail), courtesy of the National Library of Medicine; red
blood cells (detail), courtesy of cellsalive.com © James A. Sullivan; and "Your Blood Can Save Him" World War II Red Cross poster (detail), courtesy of the U.S. National Archives. |
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