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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.