title: The NSABP trials.
authors.forename: D F
authors.initials: DF
authors.lastname: Heitjan
mesh_terms: D001943:Breast Neoplasms / Q000601:surgery*; D002986:Clinical Trials as Topic; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D008408:Mastectomy; D015412:Mastectomy, Segmental; D012107:Research Design