Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Excessive alcohol use costs the country approximately $235 billion every year.
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The horizontal fraction bar was introduced by the Arabs.
Measles. A photograph of a child stricken with measles, showing the tell-tale sign of the skin rash.
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Top Eleven Countries in Year 2009 According to Three Different Measures
The population of a city has continued to grow since 1950.