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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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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.