This article is related to a Cochrane Protocol or Review which is published in the Cochrane Database of Systematic Reviews where it will be regularly updated. Cochrane Reviews are of a high standard and are not evaluated by CRD. The link is:
http://www.mrw.interscience.wiley.com/cochrane/clsysrev/articles/CD000486/frame.html
The editorial team have withdrawn this review ‘Tamoxifen for early breast cancer’ from publication since the most up-to-date results from the Early Breast Cancer Trialists' Collaborative Group overview are available from the Clinical Trial Service Unit and Epidemiological Studies Unit website (http://www.ctsu.ox.ac.uk/projects/ebctcg/).