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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.
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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.