"Endocrine Responsiveness and Tailoring Adjuvant Therapy forPostmenopausal Lymph Node-Negative Breast Cancer: A RandomizedTrial" by the International Breast Cancer Study Group [J NatlCancer Inst 2002;94:10541065 (Issue 14)]. On p. 1056,right column, lines 710, the sentence should read: "Forthe ER-negative cohort, treatment, tumor size and tumor gradewere prognostically significant, and, for the ER-positive cohort,only tumor size was prognostically significant." The authorsregret the error.