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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.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
There are more sensory neurons in the tongue than in any other part of the body.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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