OUTLINE: This is a randomized, multicenter study. Patients are stratified according to estrogen receptor status (positive vs negative vs unknown), nodal status (0 positive nodes vs 1-3 positive nodes vs 4-9 positive nodes vs at least 10 positive nodes), tumor size (no more than 5 cm vs more than 5 cm vs unknown), and type of prior surgery (mastectomy vs breast conservation surgery). Patients are randomized to one of four treatment arms.