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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.