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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.