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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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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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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).