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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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There are approximately 3 million unintended pregnancies in the United States each year.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.