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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.
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The horizontal fraction bar was introduced by the Arabs.
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Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.
Assessing for Chvostek's Sign
Why Different Constellations Are Visible at Different Times of the Year
In American Progress (1872), John Gast depicts a feminized (and eroticized) America moving westward,
Sign and symptoms of a patient with heart failure