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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Everyone has one nostril that is larger than the other.
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