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Used bloodletting to try & cure diseases.
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first to distinguish between arteries & veins.
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viewed blood cells from a microscope.
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discovered the three blood types A,B, & O.
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discovered the fourth blood type AB.
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established the first blood donor service.
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developed a method to store blood transfusions.
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establishes the first blood bank
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discovered the Rh protein
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identified the virus causing AIDS.
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enzyme-linked immunsorbent assay
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