Radiotherapy.
D000328:Adult; D001943:Breast Neoplasms / Q000532:radiotherapy*; D002648:Child; D003131:Combined Modality Therapy; D005260:Female; D006689:Hodgkin Disease / Q000532:radiotherapy*; D006801:Humans; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control*