Risk from both alleles was confined to estrogen receptor - positive tumors.
两种等位基因引起的乳腺癌仅限于雌激素受体阳性肿瘤.
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The study found the increased risk most acute for cancer involving so - called estrogen - receptor positive tumors.
研究发现,西式饮食对雌激素受体阳性肿瘤作用最明显.
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