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Vogel, Victor; Joseph Constantino, Lawrence Wickerman et al. (2006-06-21). “Effects of Tamoxifen vs. Raloxifene on the Risk of Developing Invasive Breast Cancer and Other Disease Outcomes”. The Journal of the American Medical Association295 (23): 2727–2741. doi:10.1001/jama.295.23.joc60074. PMID16754727.