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Breast Cancer Test Unveiled Researchers meeting in San Antonio are reporting promising results about a new genetic test that can predict which breast cancer patients will benefit from chemotherapy. But the test is costly, and its predictive ability isn't perfect. NPR's Joe Palca reports.

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Test Could Help Fine-Tune Breast Cancer Treatment

Heard on All Things Considered

Breast Cancer Test Unveiled

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Researchers meeting in San Antonio are reporting promising results about a new genetic test that can predict which breast cancer patients will benefit from chemotherapy. But the test is costly, and its predictive ability isn't perfect. NPR's Joe Palca reports.