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. 2011 Feb 22;104(6):899–902. doi: 10.1038/bjc.2011.45

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Copyright © 2011 Cancer Research UK

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Cumulative morbidity and mortality from cerebrovascular diseases among patients randomly assigned to 2 years (n=2114) or 5 years (n=2036) of adjuvant tamoxifen therapy. Patients at risk and cumulative risk estimates with 95% confidence intervals (CI) are given at 5, 10, 15 and 20 years after start of treatment.