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They used this in surgerys.
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He was the first one to start cleaning his tools before performing surgerys.
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Bayer started selling it on the shelfs that year as well.
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Karl Landsteiner discovered different blood types
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William Einthoven built an electrocardiograph which records heart pulses.
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It killed millions of people. Started in the war bases.
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Dean Komen invented the insulin pump making it easier to get insulin.
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Dolly was the first mammel cloned from adult cells. (she died in 2003)
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He used this to develop tetanus and dithpheria vaccines