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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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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.