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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