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Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
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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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Asthma cases in Americans are about 75% higher today than they were in 1980.
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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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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.