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Author Question: Which area does NOT contain a major population cluster of Southwest Asia and North Africa? (Read 630 times) |
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
In 1864, the first barbiturate (barbituric acid) was synthesized.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.