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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.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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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).
A Kiowa couple. The woman to the right is wearing an elk tooth dress.
Some scholars regard Walt Whitman as a poet of nature, and others, a poet of the body—a reference to
A woman in a net on a Congo shore. Although the importation of slaves was illegal after 1807, histor
Woman doing housework
Woman seated between two felines, Çatalhöyük, Turkey.
The Beauty of a Woman