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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.