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Karl Landsteiner develops a system that classifies blood into their types.
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Insulin is used for the treatment of diabetes
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Vaccines for diptheria, whooping cough, tuberculosis, and tetanus are made.
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Alexander Fleming discovers penicillin
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The first papers on ultrasonic or ultrasounds are published by Karl Theodore.
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Influenza vaccine was first used.
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Work on the structure of DNA was worked on by James Watson and Francis Crick.
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First polio vaccine developed by Jonas Salk
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CAT-Scans invented by Robert Ledley
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Dolly the sheep is the first cloned organism
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First vaccine made that targets causes of cancer