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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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.
