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Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Southernmost reindeer: a South Georgian reindeer with velvet-covered antlers Southernmost reindeer: a South Georgian reindeer with velvet-covered antlers
Subcutaneous drug administration: (d) the needle is removed and the puncture site is covered with an Subcutaneous drug administration: (d) the needle is removed and the puncture site is covered with an
) Intramuscular drug administration: (d) the needle is removed and the puncture site is covered wi ) Intramuscular drug administration: (d) the needle is removed and the puncture site is covered wi
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