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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%