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Louis Pasteur identifies germs as cause of disease
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First contact lenses developed
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Wilhelm Conrad Roentgen introduced the use of X rays
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Felix Hoffman develops aspirin
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Karl Landsteiner introduces the system to classify blood into A, B, AB, and O groups
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Dr. Paul Dudley White pioneers the use of the electrocardiograph
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Earle Dickson Invented the Band-Aid
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Sir Alexander Fleming discovers penicillin
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First vaccine developed for yellow fever
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Bernard Fantus pioneers the use the first blood bank in Chicago
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John Hopps invented the first cardiac pacemaker
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Dr. Joseph E. Murray performs the first kidney transplant
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First human heart transplant was done by Dr. Christiaan Barnard
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Robert S. Ledley invents CAT-Scans
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First vaccine developed for pneumonia
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First vaccine developed for hepatitis A
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First vaccine to target a cause of cancer