Trastuzumab Active Not Recruiting Phase 3 Trials for Estrogen Receptor Positive / Stage IIIA Breast Cancer AJCC v7 / Stage IIIB Breast Cancer / Stage IIIA Breast Cancer / Stage IIA Breast Cancer / Stage IIA Breast Cancer AJCC v6 and v7 / Stage IIB Breast Cancer AJCC v6 and v7 / Stage IIIB Breast Cancer AJCC v7 / Progesterone Receptor Positive / HER2/Neu Positive / Stage IB Breast Cancer AJCC v7 / Stage IIIC Breast Cancer AJCC v7 / Stage IB Breast Cancer / Stage IIB Breast Cancer / Stage IIIC Breast Cancer / Stage II Breast Cancer Treatment