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There are approximately 3 million unintended pregnancies in the United States each year.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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People about to have surgery must tell their health care providers about all supplements they take.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.