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Did you know?
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.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.
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The average office desk has 400 times more bacteria on it than a toilet.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.