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多年已用作牲畜生长促进剂的合成类固醇已烯雌酚,在报道了它对动物和人类癌有影响之后,遭到了抨击。禁止已烯雌酚的提议
Diethylstilbestrol, a synthetic steroid that has been used as a livestock growth promoter for many years, was attacked after reports of its impact on animal and human cancers. Prohibition of diethylstilbestrol has been proposed