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Asthma cases in Americans are about 75% higher today than they were in 1980.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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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.