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In the Original Article titled “Association of 70-Gene Signature Assay Findings With Physicians’ Treatment Guidance for Patients With Early Breast Cancer Classified as Intermediate Risk by the 21-Gene Assay,”1 published online October 26, 2017, information about the Open Access status was added to the acknowledgments. This article has been corrected online.
Open Access Information Added. JAMA Oncol. 2018;4(1):133. doi:10.1001/jamaoncol.2017.4703
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