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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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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.

amino acids with single and three code amino acids with single and three code
Darters such as this male greenside darter form a diverse and distinctive subfamily of fishes within Darters such as this male greenside darter form a diverse and distinctive subfamily of fishes within
King Charles V, Holy Roman Emperor and ruler of Spain from 1516-1556, possessed the distinctive Habs King Charles V, Holy Roman Emperor and ruler of Spain from 1516-1556, possessed the distinctive Habs
Each subculture provides its members with values and distinctive ways of viewing the world. What ... Each subculture provides its members with values and distinctive ways of viewing the world. What ...
Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants Validation of the genetic code by amino acid sequence analysis of T4 phage lysozyme mutants
The genetic code The genetic code
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