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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
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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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Human kidneys will clean about 1 million gallons of blood in an average lifetime.
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There are more nerve cells in one human brain than there are stars in the Milky Way.