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Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.