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This rebuttal letter refers to the letter to the editor article available at doi:10.1007/s10549-014-3177-2
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Loud, J.T. Circulating estrogens and estrogens within the breast among postmenopausal BRCA1/2 mutation carriers. Breast Cancer Res Treat 148, 691–692 (2014). https://doi.org/10.1007/s10549-014-3186-1
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DOI: https://doi.org/10.1007/s10549-014-3186-1