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Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.