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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Medication errors are more common among seriously ill patients than with those with minor conditions.
There are more nerve cells in one human brain than there are stars in the Milky Way.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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