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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.