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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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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

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Excessive alcohol use costs the country approximately $235 billion every year.

The process of exon shuffling. The process of exon shuffling.
Color mixtures of refracted light—additive process. Color mixtures of refracted light—additive process.
(b) Scanning electron microscopy showing a phagocytic cell in the process of phagocytizing bacteria. ... (b) Scanning electron microscopy showing a phagocytic cell in the process of phagocytizing bacteria. ...
Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ... Rub the ears between your thumbs and index fingers. Follow the curves to rub the entire ear, ...
Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ... Nitrogen dioxide decomposes at 300°C via a second-order process to produce nitrogen monoxide ...
The Heat Index. The Heat Index.
Video: Oxygen transport - methods and oxyhemoglobin

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