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Blood is approximately twice as thick as water because of the cells and other components found in it.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
The horizontal fraction bar was introduced by the Arabs.
Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.
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