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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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Illicit drug use costs the United States approximately $181 billion every year.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.