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Author Question: Since the 1960s, high-yield varieties of rice, corn, and wheat have kept millions of people from ... (Read 36 times) |
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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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.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.