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. Author manuscript; available in PMC: 2009 Sep 9.
Published in final edited form as: Steroids. 2007 Jul 27;72(13):829–842. doi: 10.1016/j.steroids.2007.07.009

Figure 2.

Figure 2

The metabolic activation of tamoxifen to phenolic metabolites that have a high binding activity for the human estrogen receptor. Both 4-hydroxytamoxifen and endoxifen are potent antiestrogens in vitro.