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Egyptians used bloodletting to try to cure diseases
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Greeks distinguished between arteries and veins
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Anton Van Leeuwenhoek viewed blood cells under a microscope
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First blood transfusion preformed
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Karl Landsteiner discovered three blood types
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Alfred Decstello discovered fourth blood type AB
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Percy Oliver established the first blood donor service
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Mayo Clinic developed the first blood donor service
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Dr. Bernard fantus established the first blood bank
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Karl Landsteiner discovered the RH protein
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First case of AIDs recorded in the congo
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Robert Gallo identified tthe virus causing aids
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Development of ELISA test to screen for diseases such as HIV by detecting and measuring antibodies
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Scientist developed blood screening test for infectious diseases
