Possible role of uninvolved regional nodes in preventing metastasis from breast cancer.
D001943:Breast Neoplasms / Q000276:immunology*; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000276:immunology*; D008408:Mastectomy; D009362:Neoplasm Metastasis / Q000517:prevention & control*