title: Letter: Early breast cancer and postoperative irradiation.
mesh_terms: D001943:Breast Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D002986:Clinical Trials as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D011182:Postoperative Care; D013997:Time Factors