False Positives the Norm for Some Prenatal Screening Tests
KQED's Forum
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Is There a Difference Between Positive and False Positive Results?
Companies say they still see value in these tests, because they are finding some true cases as well. But weve found examples of at least one company that e has never published a pure reviewed study on how often its positive results from mico relations are right and wrong. We also found that in their advertising to providers, they used language that might make it difficult to know about these false positives.
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