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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.