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Author Question: With a budget of $200 million, the government can choose to purchase 4 helicopters or repair 200 km ... (Read 51 times) |
A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.