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.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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There are more sensory neurons in the tongue than in any other part of the body.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
The paired-image subtraction technique, which is commonly employed in cognitive neuroscience. Here ...