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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
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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 first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.