Estrogens, CatecholCatecholsEstrogensCatechol O-MethyltransferaseHydroxyestronesCatechol 2,3-DioxygenaseCatechol 1,2-DioxygenaseEquileninReceptors, EstrogenEstradiolEstrogen Receptor alphaHexestrolDienestrolEstrogen Receptor betaQuinonesDNA AdductsEstrogens, Conjugated (USP)DioxygenasesMesocricetusOxygenasesCytochrome P-450 CYP1A1HydroxylationAryl Hydrocarbon HydroxylasesBreast NeoplasmsCatechol OxidaseMethylationPhenolOvariectomySelective Estrogen Receptor ModulatorsOxidation-Reduction