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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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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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The average office desk has 400 times more bacteria on it than a toilet.
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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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Blood is approximately twice as thick as water because of the cells and other components found in it.

