Figure 1.

Structure of equine estrogens. With the exception of Δ8,17β-estradiol, all estrogens in their sulfated form are components present in the estrogen replacement drug CEE (conjugated equine estrogens; Premarin®, Wyeth Pharmaceuticals, PA, USA).

Perrella et al. Lipids in Health and Disease 2003 2:4   doi:10.1186/1476-511X-2-4
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