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Author Question: A diagnosis of AIDS: (a) happens only when one tests positive for HIV (b) is made when there is ... (Read 38 times) |
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.