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There are approximately 3 million unintended pregnancies in the United States each year.
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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 term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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Your heart beats over 36 million times a year.
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Vaccines prevent between 2.5 and 4 million deaths every year.