Purpose:To identify the prognostic predictors a nd to establish a prognostic index model for breast cancer patients with brain metastasis(BM) after irradiation.
目的：探讨影响乳腺癌脑转移放射治疗预后的因素并建立预后指数模型。
Purpose:To identify the prognostic predictors a nd to establish a prognostic index model for breast cancer patients with brain metastasis(BM) after irradiation.
目的：探讨影响乳腺癌脑转移放射治疗预后的因素并建立预后指数模型。
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