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PURPOSE The 21-gene Recurrence Score (RS) assay is used to predict disease recurrence and benefit of chemotherapy in estrogen receptor-positive, lymph node-negative early-stage breast cancer (EBC).(More)
Background: The 21-gene recurrence score (RS) assay is retrospectively validated for assessing prognosis and benefit from chemotherapy in hormone receptor-positive, early-stage breast cancer (EBC)(More)
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