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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The horizontal fraction bar was introduced by the Arabs.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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People about to have surgery must tell their health care providers about all supplements they take.