Among women with ER-positive disease, the reduction in the recurrence rate and in the breast cancer death rate are highly significant either after 1–2-year or 5-year use of tamoxifen, but are greater in the latter.
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Among women with ER-positive disease, the reduction in the recurrence rate and in the breast cancer death rate are highly significant either after 1–2-year or 5-year use of tamoxifen, but are greater in the latter.