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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.