In 1864, the first barbiturate (barbituric acid) was synthesized.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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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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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Varieties of Long-Term Memory
Every state has a two-letter abbreviation.
Example of Index entry with Main Term and indented subterms.