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Mouth cancers aren’t the most common cancers, but they are among the deadliest, killing half of their victims within five years. Long before telltale lesions appear, UCLA’s new, reliable spit test detects oral cancer by scanning a sample for certain red-flag RNA molecules. The test is 85 percent accurate, and results come back in 24 hours. UCLA scientists are now working to simplify it for home use. www.dent.ucla.edu
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