Postoperative radiotherapy in breast cancer.
D001943:Breast Neoplasms / Q000532:radiotherapy* / Q000601:surgery; D002986:Clinical Trials as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011379:Prognosis