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The familiar sounds of your heart are made by the heart's valves as they open and close.
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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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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.