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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
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There are more sensory neurons in the tongue than in any other part of the body.
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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.
Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
A typical fire extinguisher designed to be used on class A, B, or C fires.
Typical joint changes associated with osteoarthritis.
Illustration of multidirectionality and low density of fibers in typical fascia.
Stepping It Up: Foundations for Success in Math, First Canadian Edition
Success is an iceberg