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They used bloodletting to try and cure diseases.
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They distinguished between arteries and veins.
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He was the first to view blood under a microscope
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The first blood transfusion was performed
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Mr.Landsteiner discovered three blood types A,B, and O
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He discovered the fourth blood type AB
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He established the first blood donor service
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This clinic developed a method to store blood transfusions.
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Doctor Bernard established the first blood bank
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Once again making a discovery, this time discovered the Rh protein.
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The first case of AIDS was recorded in the Congo.
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He identified the virus causing AIDS
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ELISA is a screening test to determine if a person has AIDS or not.
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Scientists began developing blood-screening tests for infectious diseases
