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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.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.
The standard protocol of a metagenomics experiment.
Goblet cells that line the intestine
Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a
In which experiment was the hormone glucagon used?
(A) Pinch along jaw line from midline to lateral aspect. (B) Press St-6 at masseter attachment.
Two radio antennas are 130 m apart on a north-south line. The two antennas radiate in phase at ...