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Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

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Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

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Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

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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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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

2008 launch of the SM-3 missile used to destroy American spy satellite USA-193 2008 launch of the SM-3 missile used to destroy American spy satellite USA-193
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In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc During World War I, advancing armies unloosed ferocious artillery barrages to destroy deeply entrenc
How People Match Their Goals to Their Means How People Match Their Goals to Their Means
A 40.0-kg crate is being raised by means of a rope. Its upward acceleration is 2.00 m/s2. What ... A 40.0-kg crate is being raised by means of a rope. Its upward acceleration is 2.00 m/s2. What ...
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