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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

