SAN ANTONIO (EGMN) -- High-dose chemotherapy supported by autologous stem cell transplantation resulted in no overall survival benefit over standard-dose adjuvant chemotherapy in women with node-positive breast cancer in a comprehensive meta-analysis of 15 randomized clinical trials.Moreover, study investigators could not identify a subset of patients who benefitted from this intensive, costly, arduous, and controversial therapy based upon age, menopausal status, number of positive lymph nodes, tumor...