Figure 1From: Endocrinology and hormone therapy in breast cancer: Selective oestrogen receptor modulators and downregulators for breast cancer – have they lost their way?Chemical structures of anti-oestrogen compounds. Shown are the chemical structures of tamoxifen, the 'tamoxifen-like' selective oestrogen receptor modulator (SERM) toremifene, the 'fixed-ring' SERM raloxifene, and the selective oestrogen receptor downregulator (SERD) fulvestrant.Back to article page