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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.