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Because mammary glands are surrounded by adipose tissues, we hypothesize that the ultra-lipophilic endogenous estrogen-17beta-fatty acid esters may have preferential hormonal and carcinogenic effects(More)
In animal models, estrogens are complete carcinogens in certain target sites. 4-Hydroxyestradiol (4-OH-E2), an endogenous metabolite of 17β-estradiol (E2), is known to have prominent estrogenic(More)
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