TY JOUR TI Total Brain Irradiation for Metastatic Lesions in Breast Cancer Patients KW breast cancer KW brain metastases KW total brain irradiation KW time interval to brain metastasis KW survival JO Medical Radiology and radiation safety AU Balkanov, A.S. AU Metelin, V.B. AU Vasilenko, I.A. PY 2021 IS 66 PB Federal Medical Biological Agency of Russia