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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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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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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).