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Claudius Galenus (Galen) proves that arteries contain blood and suggests that blood forms in the liver and travels through veins around the body.
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Eminet Caro and Ibn Al-Nafis discovered that blood flows to and from the lungs.
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William Harvey explains that blood circulates within the body and is pumped by the heart.
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Jan Swammerdam was the first to observe and describe red blood cells.
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Richard Lower performed the first animal blood transfusion.
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Anton Van Leeuwenhoek approximated red blood cells size to 25,000 times smaller than a grain of sand.
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A foot note is recorded stating that Philip Syng Physick performed the first human-to-human blood transfusion.
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Alfred Von Decastello and Adriano Sturli identified the fourth blood type- AB
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Dr Reuben Ottenberg performed the first cross matching transfusion.
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Albert Hustin and Luis Agote discovered that adding sodium citrate to the blood will stop it from clotting.
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Francis Peyton Rous and J.R. Turner develop a solution that allows blood to be stored for a couple weeks for transfusions after it is collected.
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Dr Serge is the first to test the efficency of using humans to transfuse cadaver blood.
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Dr Max Perutz unraveled the structure of hemoglobin (protein in red blood cells that carry oxygen.)
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Dr Baruch identified a substance on the surface of hepatitis B that creates antibodies.
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Originally called GRID )Gay Related Immunodeficiency Disease), AIDS' first cases were repored.
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Dr bruce Evatt suspected that the disease was in the blood.
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Dr Robert Gallo announced that he identified the virus that causes AIDS.
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The first test to detect HIV was licensed by the government.
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More sensitive tests were developed to detect infected blood.