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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
People about to have surgery must tell their health care providers about all supplements they take.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
On average, the stomach produces 2 L of hydrochloric acid per day.
There are more sensory neurons in the tongue than in any other part of the body.
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